Not at all. Question away. I'd guess that's one of Twitter's primary functions.
I've never really understood the vilification of people like Lineker. He's just a TV presenter. Personally, I've got no great interest in what he has to say, so I don't follow him on Facebook or Twitter or Instagram or whatever, just as I don't follow countless other TV presenters I've got no great interest in. What I find strange is this obsession people have these days with hounding celebrities who they apparently don't like or agree with, but that's the world we live in now I guess.