It's amazing how long this has got. My two cents:
The question is concerning whether bloggers are ruining flyertalk. Not whether bloggers are bad/good, or whether they should be blacklisted, etc.
As a 'noob' member according to some, I'd say no. Yes, even though the bloggers do post the deals, it's not always ruined. Would the RGN fare (which I brought onto the main premium fare deals thread) be worse off if matthew@upgrd hadn't posted about it? No. Would the any of the points packages not have sold out if the bloggers didn't talk about it? No.
Maybe some Fter's think that the content of the blogs are junk, but that's their problem. The bloggers have the right to post whatever they want. If you think that they are ruining flyertalk, then move somewhere else. What's the need of hundred's of posts on a dumb topic? Spend your time finding fd's!