They just create some kind of hype once or twice in a month or week and make their profit with fake exchanges and forget about it, I am talking about the developers of those kind of altcoins which are not performing and these are totally waste for crypto market and also creating confusion for new people who are entering in crypto world so what's your opinions. Useless altcoins must be remove from crypto market if it happens then it would be great and very beneficial for crypto world.
I totally agree with your opinion that alttcoin which is useless must be immediately removed from the cryptocurency market. but in this case the exchange or market owner must make a special rule or regulation to the altcoin developer if someday the altcoin that has been listed in the market has lost its sale value it will be immediately removed from the market place .. so there will be a kind of bond contract between the owner of the exchange with the owner of altcoin.