Yes, I think that now it is extremely difficult to receive extra large profits from this case. We have to carefully select projects for participation, as well as investors. Well, less time is spent, this is a plus
I'm not a bounty hunter and I see that the number of hunters increased for a very short period of time.
And in your cases which you have noticed that its difficult now to get large profits through it has some reasons.
1. Number of scam ICOs are increasing and if they have a bounty, don't expect that you'll get paid.
2. The number of participants has increased and the pool of rewards that will be allocated will only give small portion to all of them.