Duplicate Posting in multiple boards unless they aren't translated leads to the topic getting trashed. Since you are posting the English version in B&H board and the translated one in your Local board, you won't be facing any such hard times with the breaking of rules. It's good to hear that you are taking an initiative to educate the newbies in your local section, but using automated translator tools could also lead to a negative feedback along with the deletion of the topic.

If you are translating the articles without any automated translation tools and citing proper sources for the articles there shouldn't be a problem for you. Bans are often issued only when you are caught for plagiarism, Duplicate Postings will lead to just deletion of topic and using of automated tools will lead to receiving a negative feedback from DT.

Maybe, you should spend your time to read my topic, in which you can find almost everything you need to avoid plagiarism.
[TIPS] to avoid plagiarism

I read them all, in conclusion as long as I put the sources where I get the articles and give the authors credit I should be fine. another thing that I've learned from your post is, never forget to post the link where you get the topic once you mess up there's no turning back. I'll appreciate it!
God bless you.

Instead of copying the whole article, which I believe that you also put the link of those articles in your posts, why not just post a new idea about the article that you've read, in that case you will not worry if you are committing a plagiarism act, also, you could explain it a lot more easy for your countrymen to understand what that article was trying to say.

You could also add something else that could be helpful regarding about a certain topic that you want to explain to other people who still have no idea about the cryptocurrencies and how it would help them in their daily lives, just saying.

The first link you provide as an example seems to be yours, and is written in English. I guess you are wondering if you can translate your own post into your local language and post it there. You can do that (as long as it is not an automated translation), as it will not be considered a duplicate post, and it is explicitly allowed by the forum rules.

The fourth link, fifth and sixth links are essentially translations of forum OPs. You reference correctly the link to the OP, and the author, which is fine, although it is common practice to obtain the OPs permission beforehand to be on the safe side (this does not always occur, and I have not seen any trouble for not obtaining prior permission from the OP, but it’s better if you PM him/her just to confirm – and out of curtesy).  

The second and third links refer to one or more multiple external sources. The references are there, so that should cover the forum’s core view on avoiding plagiarism, although if you were to be very really picky, you would obtain the original media´s permission to go ahead with the translation (as above). I doubt nevertheless that anyone really goes to that extent on external information sources. You could rephrase the text instead of performing a verbatim translation, adding your personal touch or opinion in the process.

You are going to be fine in this forum. (This forum will not ban you for plagiarism.) You should also check for notes/footnotes of the source websites that prohibits you from copying their material for any reason. If there is any warning then I suggest you to not to use that source in this forum. (Generally every thing in free domain can be used but if it is paid content for member only then you will see the warning of no copying of their data/article.)
 

Despite giving enough credits to the source you will be bad when you will start posting continuously such type of post which is copied from other sites. Suppose if more than 50% post will in this category then you will not be fine because anytime any reputed person can call you as a spammer. So try to reduce posting mainly copied from other site posts to be safe and clean. Thanks

According to my knowledge, spam posts are posts that have no meaning and off topic and some of them are made only to fulfilled the post requirement of their Signature campaign. while on the other hand, my posts are giving some advice and some tips about Crypto Currencies, It might be not useful today but I'm sure when some newbie read these topics of mine he will gain some knowledge about things that he hasn't been aware of his whole life. so that's not gonna makes me a spammer at all as long as I only post things that are related to our Bitcoin community.

Just make it simple,
1. If you would like to translate your own topic with your native language, then you free to do it. No need any permission from others or forum.
2. If you like to translate topic from other user, then you should ask OP and you should attached link of original OP, give credit to OP will be appreciated. It will save you from future claim by original poster. I this all original poster will give you permission happily since you are promoting him/her for free.
3. Don't translate whole article from their party website or blogs. You can just translate the summary and attached original link with credit of writer. If you like to translate whole article or blog , then to be fair you should get permission from original writer.
4. You should not direct copy paste from any topic or any other third party website. If you need any part for reference then use quote. For third party website first use link and then use quote for article. Copy paste whole article even you use quote or credit with link will prove your post worthless. So better avoid copy paste whole article.  
5. It will not look good if you always copy paste from others and just use source link. Sometimes there is risk of ban your account if moderators found multiple report against you. So try to be a decent user and help others as well. Copy paste isn't really wise decision so try to avoid it as much as possible.