At the risk of getting sucked into this craziness...My 2 cents on the blog.
Until your evidence that Dave did not receive 3 180's (whether consecutive or not), I'll presume that Dave did score 3 180's, although not consecutively.
The only place in the blog that implies that Dave may have scored 3 straight 180's is in the title. It is entirely possible the title was created after the interview and Dave didn't know about it. Even if he did know of the title beforehand, it does not say that Dave got 3 consecutive 180s, merely that the blog has something to do with "How to get 3 straight 180's." This may be misleading, but I would think more so on the grounds that the content of the interview itself isn't enough to illuminate a path to getting a 180 than the fact that it may imply that Dave himself got 3 consecutive 180's.
During the interview, the specific question he was asked (if the blog is to be taken at face value, which could perhaps be a mistake considering the title) is, "(Having) scored a 180 on three separate occasions, what would you say are the keys to consistency scoring high on the actual examination?" This says nothing about consecutive 180's, merely that a 180 was scored on 3 separate occasions. So Dave had no reason to correct the author here.
It seems to me like he has done nothing wrong, except try to help people that are having problems with their LSAT's (DAMN HIM!). If they like what he says, perhaps they look a little further and find he owns a test prep company. That sneaky bastard. Why doesn't he advertise like a normal person, spending shit loads of money???? I've heard a saying about this somewhere...something about time...and money...but I can't quite remember. Oh well. Happy hunting (I bet Dave floats. I'd burn him.)