Not true,it depends on the number of participants,if the bounty has few participants it would be profitable for those few people,in the otherhand if the bounty has thousands of participants you wont get much tokens,lastly depends on the outcome of the campaign because morelikey successful ICOs will pay you a lot and thoe who will failed will give you pennies or nothing.

It depends on the supply of the coins and the number of participants in the bounty. Also, depends on the reached cap of each bounty. If the project reached their hard cap, then you would expect big coins. Likewise, if there are few participants but have big supply, then you will receive huge clins as well.

That could be true in a certain way. That is if a bounty is prolonged due to ICO extension, many people will join in later to make the participants so many. So in view of that many projects puts a limit to the number of participants if it exceeds a certain number. Also, as bounty is prolonged, you might not be able to continue possibly due to certain reasons and that can affect the number of tokens you'll get. But one fact is that, for you to earn more tokens you need to work hard, in fact very hard to accumulate as much stakes as you can. You should also join a good project that will sell well because bounty allocations are a percentage of what investors will buy so if all tokens are bought then you'll get more as well. One other trick is that, be serious with the bounties that most people find it difficult to do. Do them seriously only if you can and you'll scrap all the allocated tokens in that pool

The longer the bounty the bigger the stakes of these higher ranks will have,it means the low ranking signature participants will earn less that is why i am not joining these campaigns which has a lot of high ranking participants because it isnt worth your time,the stakes will be less because there are too much high ranks that will get your stakes.

It's because there's a chance that you will not get paid so your friend started to leave the bounty.
And there are many people who joined the bounty so the pool will be rewarded to many people.
More participants = lower share for stakes.

Thats unfair if those high ranks will join the bounty campaign when last week has come,because low ranking profiles will get not too much compare to these high ranks,some of these high ranks are joining the last weeks and you will be suprised that your 2months works of posting will be equal to 1week of an hero bitcointalk account when we are talkinga about signatures.

In most cases bounty budget is set in advance so it doesn't matter how long the bounty will last you still get the same amount. So I used to skip bounties which last for several months, because I already had a bad experience where I got about 10$ for 12 weeks for work.

Stay if you think it is till worth the hassle,if the project itself is worthy to have you should stay but if you think the project will have a 5050 chance you wont get too much after the ICO has ended,picking good bounties is too hard but if you have picked very good projects your bounty tokens will be worth the price.

If you have joined signature campaigns that would be applicable because signatures prioritize those who has high ranking profiles,the longer they are in the campaign the bigger they will cut from your stakes especially when you are low ranking profiles in bitcointalk,the hassle wont be worth it and you will only waste your effort.