Newatthis -
I might agree with you if in fact the advertisers in general were actually "running amok".
Don definitely posts a lot and at least some of his early post volume were little more than copies of earlier posts (so to pick on him as an example) - he seems to mostly post at the behest of other board members. For instance, there are a number of folks who read and respond to his openings thread.
Worst case - suppose that there's only a few elightening posts out of a 1000 - it's still better than the off-topic idle chat or consistently negative posts of some posters who never say anything useful or meaningful (as little as 1 out of 1000 is better than never

).
He does pump the prop firm thing a lot, but I haven't really ever seen him "bully" anyone (although I usually don't read the threads that are obviously "Don threads").
Gene rarely/never overtly pumps the prop trading thing and typically I find his posts well thought out and useful, so he shouldn't even be included in your "advertisers running amok" group.
Def also hasn't seemed to be doing any proactive pumping - although again I don't typically read the IB oriented threads (but as in reading a Don thread, you should expect an IB thread to be focused on what's good at IB - nothing wrong with that). He seems to mostly be responding to other's posts and the one's I've read have been pretty to the point and hype-free. So again, I wouldn't lump him into the "advertisers running amok" group.
Also, Don's posts are fairly well contained in easily identifiable threads, so if you don't want to read his posts, it's pretty easy to avoid doing so. And if/when he posts a clearly slanted or particularly uninformed comment on a non-Don thread, there's usually enough others who'll jump in and call him on it. Not to mention when he goes really off base, it's usually good for a laugh. And frankly, if anyone makes an important decision like deciding to trade at Bright solely based on Don's posts, they're probably not long for trading - so I can't see the harm as long as there isn't rampant spamming on unrelated threads.
Everyone's entitled to their own opinion, but at least IMO so far I find it hard to say most/any advertiser has really "abused" the situation or "run amok".