kboy, you don't know me but if you did, you would know that I am a HUGE Freedom of Speech advocate. Quite frankly, I don't think there should any censorship of any kind and it's for legal reasons that I say that.
The posters on this board have been around and trading for a long time. If somebody comes over here and spams, in an attempt to artificially inflate the price of a stock, most of us will see it and call it for what it is.
For the new people, by reading what we have to say about it, they can learn from it. So, rather than delete the "offensive" post, offer information, ie..."so and so just posted the same message on 5 boards in the last 2 minutes and I just got an email blast on it as well..somebody is promoting it...be forewarned."
By approaching it like that, you expose the spammer, teach the newbies and warn everybody else. If the "spammer" doesn't like the feedback and exposure he gets, he probably won't come back.