I wasn't taking the piss and the poster you quoted didn't seem to be either. How well Brighton are doing has absolutely no bearing at all on whether we think Pearce will do a good job. Personally, I wish him well, I always admired him as a player, England could do with more like him.
Surely just an opinion and that's okay, right? I'm in the camp that thinks he's not up to it. I may be proved wrong however that doesn't make me really, really, stupid.