Any suggestions as to how we, genuine "clical" music users, can stop those from posting here, who are not?

Like so many other words, such as "gay", it seems the usage of words and definitions has become confusingly elastic. "Clics", according to my guitar-playing grandson includes rock music I've never heard of - and don't want to hear. But for me they extend from Gregorian chants, through Bach etc to Mozart and Stravinsky, to my beloved jazz of the 20's, 30's and before. Perhaps the test for me is whether they've lasted for more than 50 years - and then, whether they significantly broke new ground and affected other music. And finally whether I enjoy them. So I'd include the Beatles. That's confusing enough!