Byrne is a loon. Hell, read his post on this thread. Read as much as he as written as you can. The fact that he latched on to naked short selling as one of his obsessions hardly means he is sane. Well, unless dark jedi really are behind much of this.
As for Weiss. I don't really give a shit about Wiki politics, but after some previous articles here on the Weiss vs. Byrne's hired proxy issue, there didn't seem to be anything untoward in the edits. Byrne or someone writing on his behalf kept making edits that insisted that naked short selling was criminal and tossed a bunch of insults at any and all who might possibly do it. The language was not of a tone that would fit an encyclopedia--or at least, I don't recall Britannica using that sort of language. Someone else kept changing things back to something that described naked short selling as an activity that was currently acceptable, but dubious ethically if not legally. The text was rather dry, didn't toss anything resembling an insult around...was quite boring, really. In short, like an encyclopedia.
I just don't see some nefarious dark conspiracy behind changes that seemed designed to make sure Wikipedia at least sounded like Britannica, and not some nutter's blog site.