My anger is real, palpable, and deserved.
Many post here boasting. Most, when confroted with contention to their overzeales boasts, will admit their errors. Much like Hamlet's ire at Cladius in Shakespear's Hamlet, it is those who are false that rankle me.
A quote from the same play: "I think the lady doeth protest too much".
Your question is most pertinant, but not for the reason you may believe, and certainly not in the widespread audience that you present. I would imagine that you feel unjustly on the receiving end of this anger.
But perhaps your question should not ask of the anger in the O'Club but at a more personal audience. More true, and dearer at heart, should be the questioning of why you spend so much time here and why most of it is spent proffering nothing more than lies and dribble.
That might answer your question as to why you see so much anger. Seriously I doubt it that others readily see the amount of anger that you do, unrequited, unchecked.
Simple answer: you bring it upon yourself.