Except in Twitter you can link back to past tweets. Instagram etc don't have this and are, in my mind, WAY more ephemeral. I also would point out that if Twitt

Except in Twitter you can link back to past tweets. Instagram etc don't have this and are, in my mind, WAY more ephemeral. I also would point out that if Twitter search wasn't garbage, the linking back to old tweets and threads would be even more common as people made "threads of threads". I never got why Twitter never put more focus on searching past tweets given that people searching for things is the best signal of what they actually care about and can be used for more targeted advertising (see Google).