a subscription doesnt make people have any manners in a game period.
This is undeniably true. But we are, after all, presently operating on appearances and assumptions. And the assumptions will be that F2P is the main culprit, even if it is actually subscribers that are the ones acting like complete jackwipes.
You can often (though not always) tell, even at level 50 WZ level, who the F2P ones are - they show up for one, maybe two WZ's, regardless of ability or manners. And you are correct, there are doubtless polite, well-mannered F2P sorts who are willing to learn and play nice. But remember the axiom of 'first impressions stick', which is turning out to be true, in many cases.