yes maybe not everything is like that! everything needs a process, but the fact is like that.
sometimes I think, what's the use of them making their own cryptocurrency but when entering the market there is no further price development. after that it feels like dead!
I hope I don't misjudge.
It really depends on the developers. There are developers that don't give a care or don't have plans to develop their coin after the listing. There are lots of worthless coins because there are lots of worthless developer team.