I think that all meme coins are like all other coins must be useful for people to have a big community and a lot of users. For example 100XCoin helps to support the homeless in the streets of Los Angeles
https://twitter.com/100XCoin_/status/1400828293591486466/ It shows how useful can be cryptocurrency and increase the trust of the people to cryptocurrency.
The competition among me coins is now very high, so it is very important for any meme coins to have strong advertising and active promotion to attract attention.
Liquidity is needed for any coin. It is very important that the coin has a large number of users and a developed ecosystem with a listing on exchanges to create a need for the coin.