The more poker you play the more you should realise that AQo is virtually never fit to cold-call with.

Only on extremely rare occasions and under perfect conditions would I even consider an isolation 3-bet with it and even then it's marginal at best. If ANY limper and ANY raiser are already in front, forget it, even if one's a fish and the other a donkey. The hand is weak, vulnerable and you're paying too much to even try. You do have a positional advantage, however. You get to see what's going on in front of you and that is precisely what enables you to MUCK IT without getting involved ass-backwards to begin with!

This opinion, of course, will get me branded as a weak-tight nit. But I don't care.

Do yourself a favor. Muck first and ask questions later.