Depends if you thought Twitter ever had any value at all ever. I once made an account, hung around for 2 weeks,then never opened it again. So since musk owns it, it has no more or less than relevance than before.

It doesn't matter "what I think of its value" at this stage. It has observable effects that go beyond just me. Choosing to just ignore it and pretend it doesn't exist -- or perhaps worse -- pretending that your non-participation is meaningful, is irresponsible.