These days, we painfully observe the culture of crypto in every single online medium that isn’t very carefully moderated, for example Twitter.
And about incentives, I think it’s very hard not to become some kind of “evangelist” or “shill” when a significant fraction of your net worth is invested in a digital item whose sole value depends on enough other people also believing in the project. You need to spread the hype.
In my opinion, all of this would be fun and games if it weren’t for the massive negative externalities all of this cause in terms of environmental damage and accelerating the climate catastrophe. This is completely evident, which doesn’t stop some crypto holders from denying it with all kinds of illogical arguments. That’s understandable — see previous paragraph.