well, this is so true I agree with your point of view, most cryptocurrencies these days are projects to trick and lure investors with huge profits but then Liquidity is exchanged between investors, these are the basic characteristics of all new projects today, and as I have been involved in this market for a long time, I feel that 100 projects are out of 99 scam projects and then disappear.
Yes, currently the developers of new coin projects are using the method of locking the liquidity of coins on the exchange and ostensibly maintaining the selling value of the coins for their investors. but it turns out that once the liquidity is opened, they themselves sell everything and make the coin value worthless.