I agree with that it does seem that memecoins tend to experience pump-and-dump trends, and I feel the same way that the hype created may not last and long-term stability is often difficult to maintain in the crypto world.
Yeah all basically is just pump and dump scheme there is bunch of token like that and the code is open source you me and everyone can clone it and deploy it.
I do believe that memecoin had same developer just deploy it with different name and the dev can make a lot of money, add initial deposit burn some of it, chit chat on twitter gain some popularity. Drop some aidrop token to early user. and booom the dev is gone. either he rug the token or just gone.