It’s a persistent Misreading of Internet forums as a mode of discourse, both in how people consume them and how people participate in them, that we tend to regard their discussion threads as a mechanism for determining group consensus on a topic. Cloudflare is dropping 8chan? Let’s get together and decide whether we collectively think that is a good thing or a bad thing. Once we’ve established that fact, we can move on and refer back to that decision in future discussions, like a mathematical lemma.
If you instead think of a forum thread as an airing of opinions - a chance to find out what is the range of perspectives on the topic that exist in the community, and be exposed to nuances you wouldn’t have thought of on your own, the exercise takes on a different tone. People who came to that thread thinking that it’s obviously a good thing are exposed to arguments that disagree, and vice versa; maybe some people are persuaded to shift their viewpoint, or maybe not, but everybody learns that a topic that they might have assumed was uncontroversial is actually one on which reasonable people might disagree.
It can be jarring for the nerd-inclined to accept that just because they have arrived at their opinions through, obviously, clear rational analysis of facts, that does not mean that everybody else, when presented with the same facts, will necessarily reach the same opinion. The illusion that you can read an HN thread and say ‘well, the pro arguments seemed more coherent and got more upvotes than the anti ones, so presumably the community consensus is pro’ ignores the fact that the anti arguments were also made by members of the HN community, and we’re not bound by collective decision making. You are allowed to read the thread and adjust your own priors and come to your own conclusions, having hopefully been exposed to some perspectives you might otherwise have missed.