I might just create a new private key for each of my varied personalities.
Discussion
When I get to writing a client, it will only reuse keys in threads. It won't publish likes and follows and mutes, those will be privately stored.
But there won't be any spam either. Just anonymous discourse without bad opsec.
In old internet I've seen live cases of bipolar even multipolar creating different accounts and discussing in forums.
When it started to blow up and harm people, #fightclub style, the moderators and owners intervened and put a stop to it