Brian I agree with most of what you say, but bear in mind that we don't ban most one word post match answers and so forth, but there is a distinct difference between the frustrated and the arsehole, and whilst your point about triue fans may be slightly moot, true fans also know that the team don't intend to draw, or lose, or play shite. And most true fans know that the frustration can be still tempered by tolerance.
When the mancs won the 99 euro cup, I was so angry I left the house cos I knew I'd kick the cat. And we don't even have one. So i know if i'm really angry, i'm not going to log on. Its not hard.