Does Physics.SE's have any way of dealing with users who are highly persistent, have kook beliefs, and sound impressive? Some of these folks seem to be very successful at racking up reputation points on this site.
The characteristics that I've noticed include
Some claim to be self-educated, some to work in other professions and some to be physicists
Some claim that the physics community is incompetent
Some have publication links to well known advocates of poorly received theories.
Some claim affiliation with bodies that are named rather like highly respected organs.
Some are highly prolific posters. In the worst case the site often seems to be a forum for dialog between him and the people who correct his mistakes.
All three of these folks have high reputation or respectable scores on SE;
All of them, occasionally provide correct answers to questions.
All of them are skilled at stringing together impressive-sounding terminology in a way that makes them sound as though they are experts.
I don't claim to know everything about physics, but I do have a PhD in the subject, I teach it for a living, and usually I know enough to know what it is that I don't know. Dealing with these users has pretty much eliminated my enthusiasm for participating in the site.
As far as I can tell, SE's design, which made it a killer app in some fields (software and math) simply doesn't work well for physics. I would guess that it works more poorly for physics than for software simply because there are far more people out there who are experts at programming and/or computer science than there are who are experts in general relativity or quantum field theory. We did at one time have relativist Ted Bunn, for example, as an active member of physics.SE, but it appears that he is no longer active (hasn't posted since Oct 13). Physics.SE seems to have found the perfect recipe for driving away competent people like Ted Bunn, while retaining destructive ones.