It usually surprise me when I see investors complaining about a good project that didn't increase or providing returns immediately it got listed on the exchange and they term it scam or say different things like rekted.
But the truth is, are these investors investing in the project because they believe in it or are they just in it for the immediate profit and move on? Because if you are investing in a project because you believe in it then you should be willing to HODL the tokens and wait for the team to gradually deliver the project and meet its necessary roadmap before you judge it and not condemn it on its first listing.
I do understand what OP is trying to point out. But I think we really cannot blame those who are losing their patience from their project investments since they are expecting for profit which is normal when you have invested for something. It is really a waiting gsme but waiting for too long kills the profit itself. What do I mean? The time an investor have put waiting for the profit is being wasted along with the money they have invested in to those project rather than earning profit if they would be able to invest the expected "net" from their engagements. Projects nowadays are just really hard to predict because most of it are failing.