Let me make it clear because I don't want to come across as biased - Reddit, Facebook and platforms like it are 1000% worse and or just as bad, no contest from me on that part; the dialogue just skews a different way depending on the platform.
To the first point though, I guess I just don't understand how such niche and useful discussion ended up on twitter and remains there out of all places. It seems strange to find someone pushing moon-landing-is-fake conspiracies on the same site nuanced discussion occurs on some hyperfocused topic