[xr4ti]

What is this "free speech" on the net people that speak of? Has it ever existed?

With few exceptions the right to post in a forum has always been at the pleasure of the mods/sysop. In fact, the quality of discussion is usually proportional to how effectively the mods cull the off topic content and wield the ban hammer against the trolls. It has been this way since the days of the dial in BBS.

If the people who believe in X are unwelcome in a particular forum, then no one is stopping them from building their own. Maybe they don't benefit from the network effects of a Reddit, but a Reddit derives zero or even negative benefits from hosting them, so fair deal.