I'm just basing it on what I saw in eBay/Paypal forums. They too had troublemakers and regulars driving away newbies with rudeness. They imposed a post limit for people who do not have 10 feedbacks, which of course immediately caught all the nasties using fake IDs. The ration had a great effect until the nasties banded together to sell each other 1c recipes and leave glowing feedback. ;-) What it did show is that policies to limit Joe Average are counter-productive if the intended targets can spoof the regulations and carry on as before. Last I saw, eBay was considering an enhancement but I'd lost interest by then.
Not that I need to worry: I've turned off chatter in my UT profile and have no interest in resuming.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1
