Trollolol usually is obvious.
However, there are also some trolls that aren't as obvious, namely those who somehow seem to believe that one isn't capable to appreciate both a certain top player AND that player's rival, just as much.
This specific kind of troll will at times even troll you on other
tennis forums just the same, claiming that you're a 'fake fan!', as it's the kind of troll that thinks you should BOW DOWN to whatever the 'one-and-only' fav player says & does.
And, uhm, somehow, I just don't feel capable of that, as I don't have my brains stuck in [insert whatever fav player]'s ass. Whenever one, two, or even more of favs speak out rubbish, I will call them out on that.
And even then, I still remain being a fan.