Comment by alexpotato

> my personal approach is to try to link to the old post or at least mention that i told this before. i don't know if that is better or not though

I do this on Twitter.

Specifically, I'll retweet the thread or tweet I already have written on the topic.

Retweeting is, IMHO, the best part of twitter as it lets you "weave" a narrative of old tweets and threads. It's also why I think articles are dumb b/c you can't like to the specific part of an article like you can with a tweet thread.