Well, in my brief experience, professors live to tear each other to shreds. There is due respect for good work, but every theory exists to be torn apart. No one is exempt. Depending on your perspective, it can be either terrifying or exhilarating. There are plenty of big egos, and I am not exempt from ego, but my ego problems are of a different variety.
One of the benefits of playing around with apologetics, I suppose, would be that few people with credentials will bother to waste their time on anything you write. Maybe it is a gas to have the faithful dumbstruck by your apparent erudition in things they know nothing about. I can't imagine what one gets from ceaselessly tracking message boards, however.
While knowing that credentialed peers are waiting to tear your theory apart might be unnerving, it would seem to encourage careful and cautious work. I think this is a stark contrast to apologia - there are no credentialed peers waiting to tear your theory apart, in contrast, they want to support and cheer your theory, because it's all for the defense of the faith. The fact that two of their "brightest stars" - Nibley and Sorenson - repeatedly have serious footnote problems, for example, seems to underline this inherent weakness in the craft.
I believe that what they get from "ceaselessly tracking message boards" and culling stupid quotes is supportive evidence to justify their dismissal of critics. Instead of focusing on the solid critiques some critics have delivered in the past, they look for the stupid, the inane, the insulting to add to their collection.
Really. Can you imagine what sort of "dossier" we could collect if we regularly fished in Mormon message boards for stupid, inane, or insulting believer comments?? MAD alone would produce volumes.