In general, it is safe to say that this whole story with token drops has formed a bubble. 
In fact, the situation is such that drops appeared as a way to distribute tokens and build decentralization. Over time, they became just a marketing tool. The project attracts users by promising a drop, based on the indicators created by these users, attracts investments. Then, when the time comes, the project gives tokens to all participants of this scheme. 
It would seem that the scheme is perfect, but not everyone can make money from it, someone has to lose money or time.

Continuation in the comment.

Who is to blame for the fact that you did not receive money?
An investor?
Project team? 
Are you yourself? 
I think that no one is to blame. Investors invest money where there are users (they believe in the future). The project team also focuses on these indicators (they believe in efficiency). And you are active (they believe in earning). Everyone believes in his own and is to blame. But is this way correct in the context of technology and market development? or is it just an artificially inflated bubble that will burst sooner or later...

I want to mention @vitalik.eth  here not to attract attention, but simply I would like to hear the alpha's opinion about this  bubble that has formed.