I think the idea that people are being silenced from discussing the issue honestly is totally disingenuous. I see far more posts from people on HN about not being able to discuss the issue than I do posts actually trying to discuss the issue. I don't think I've ever seen people shut down for expressing reasonable if contentious opinions, yet somehow everyone has this idea that there can't be a reasonable discussion about it. Yes the discussion may be heated, and some more extreme viewpoints should justifiably be considered beyond the pale, but that doesn't explain the level of paranoia I see around here.

The effect of this is to reframe the debate from the actual issue at hand, into a debate about how we discuss it. The way we discuss it does matter, but the level of attention that gets around here feels like bikeshedding.