Unfortunately with rare exceptions, the author's statement is in fact true. You write a long time and you get a little.

If the bounty has no limit of participants, it will be sure that the longer the bounty means the fewer the earnings. Many bounty hunters just join the last 2 week of the bounty for beer money.

It all depends on the project. If you see that the project collects a small amount in the course of ICO, it means that it will pay little.
It is best to participate in bounty campaigns that last no more than 1-3 months.

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.

I don't know if it's true or not, but I have the same idea. I've joined many bounty like that, ICOs that aren't really successful tend to lengthen their bounty campaigns. And sadly, even now when those campaigns ended, I still haven't been paid anything and they always try to delay.  

 
In your situation, you should stay, don't leave it midway, try to trust them once. Good luck!!!

I've never thrown a company in the middle of the road, there have been losses, but it's always worth the risk, it can make something good.

I would definitely quit the bounty that lasts for several months already.
It means that the projects has hard times (they can't finish their product or collect enough money for their activities) and won't be able to preserve the adequate price of their token.

As far as I am concerned, whether to stay or leave that campaign is basically dependent on you. However, I agree with the fact that the longer a bounty campaign runs the fewer will be the earnings. This is what actually happens in bounty campaigns where there is no definite number of participants required. Many times it could be discouraging when you join a campaign and you discover that the ICO period keeps extending and many people keep joining. In such instance, the decision is left to the participant. It is very certain that the earnings will be small. So, the decision is left to you in that campaign  if you will be satisfied with the reward tokens or not.

Yes your friend is right i think.Lot of bounties have been extended these days due to market condition.But the solution is not leave.You have select best of best bounties.quit participating lot of campaigns.I suggest try to write some articles.Please do not quit.

The bad situation of the crypto currency market leads directly to the expiration of the bounty periods. Sales are very low because bounty awards are minimal.