I'm at the point now where I just make a fresh post with whatever point or counterpoint I want to make because I don't want to spread the horrible idea, but then I either have to be careful about including context or I have to deliberate exclude context. More often than not, I choose the latter and I think that's to the detriment of the broader conversation.

Are people on Tumblr weird about that? I know if you do that on Twitter, you risk getting into subtweeting territory, which can cause its own sort of drama.

I do wish it were more acceptable to just link to the discussion so you aren't spreading it directly, but you are still giving context and and people can confirm you weren't misrepresenting what was being said. However, links are super impermanent on modern social media, where URLs are often name-base and name changes are common. (We won't even discuss the problems posed by the discussion being spread over reblogs, replies, and tags, making it hard to get a good picture from one link. Comment sections on more blog-like sites are often terrible places, but at least the terribleness is collected in one place!) I honestly don't know how many people bother to follow the links if you do provide them, either because the experience of following links in social media apps is often deeply unpleasant, or just because people are kind of lazy and won't read things that aren't placed directly in front of them. 😩