It might be better if you quoted the FUD posts here instead of linking to the whole thread--I don't feel like reading through it to determine what might be a lie or misinformation, and I might not even know for sure anyway.
I'll tell you, a lot of newbies use Speculation to drop multiple shitposts, because you don't have to write anything profound (or even coherent) in that section. There's tons of nonsense and garbage posts, because the shitposters know they're not likely to have them deleted by the mods. It's pretty loose as far as moderation goes. Best thing you could do is to make a self-moderated thread, and don't think twice about doing so. That way you can just nuke the idiotic crap.
It's very unlikely theymos wants to further restrict Newbies:
No he doesn't, and that's fine by me. That's what self-moderation is for. They should be allowed to participate in any thread, but that doesn't mean if the OP is serious about his thread he shouldn't be allowed to nuke garbage. Go for it, OP.