It isn't mandatory. It is your choice to wait until your rank increases or you just need to pay a fee If you want to have some restrictions lifted as a newbie like showing images in your posts + those :

I just wondering if being copper member will be able you to wear an avatar ?

Well, Thanks for this information I thought that being copper member will be able to wear avatar.

So I had this message when I tried to reply someone who PMed me after another
"You have exceeded the limit of 1 personal messages per hour. Buying a Copper membership may increase your limit."

Then I went to search on thread about this Copper Membership, found that it also lift the restriction on Image posting for newbies.
Without delay, I immediately pay for it as I dont want to waste my time.
After paying, I went back to my inbox to reply that person, the same message still appears.. So it doesnt do what it says? Can Admin please fix this issue? What I get is not what I paid for =(
Maybe I didnt read somewhere says that this doesnt fix that issue?

Did you wait for that transaction to receive a confirmation (to successfully own it), before going back to your inbox (at that time)?
- I can see that you're wearing the copper membership (now), so that issue/error shouldn't be there (if it's still there, it's a bug).

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It's outdated though. A month after that, theymos introduced the "New PM limits":

The forum rules still apply and if you send unsolicited messages and they get reported you will still be banned.


You can't, it is a restriction that will stop you sending more.

I'm pretty sure the Bitcoin Forum only accepts payment in Bitcoin. I see you are already wearing a Copper Membership so I guess you have worked that out.

Not only posts, you need activity and merits too to rank up.

Read these two topics for more information
https://bt.irlbtc.com/view/178608.0
https://bt.irlbtc.com/view/2818350.0

The one that will appear on that page after your payment has confirmed.