> HN is one of the few (maybe the only) forum that still tolerates some intellectual discussion about issues that other sites would ignorantly label as conspiracy / misinformation and ban discussion
What kind of places do you mean?
I've been part of many online communities, and never once has one banned any type of discussion. At most, they would ask for off-topic conversations to be restricted to specific forum threads.
HN is probably the most heavily-moderated community I've been a part of. I'm grateful for that, frankly--I don't think letting every comment section devolve into a political debate is healthy for any individuals, let alone the community here.
I've actually noticed lately that, even here, more threads feel like arguments (name calling, derision of opinions, etc), and fewer feel like discussions. Everywhere else (FB & Reddit, in particular), I feel like there's virtually no discussion, and almost entirely arguments.