Replies and quote tweets already exist and that’s where discussion and debate best take place. Community notes are a totally subjective “mob rule” approach to determine what context and additional information is most relevant for other users to see. They are warning labels with no real purpose except to make a bunch of Karens feel powerful.
I feel they are useful especially with all the disinformation on X . I have seen mob rule on replies and quote tweets. Everyone should do their own research but there are so many koolaid drinkers on X.