I don't remember Rivero, although I keep hearing his name. I must have been smarter back then and just avoided threads that looked like so much conspiracy theory. LOL
Rivero's threads ran the range from believable to really whacky. But most of the subject material was topical, e.g., Ron Brown, John Huang, Vince Foster, etc. I'm surprised you avoided those.
Anyway, point being that the hypotheses advanced here, and quality of supporting reseach and analysis, is always in a state of flux.