IMO mastodon failed to replace Twitter because high profiles didn't migrate. but in Reddits case, you follow an interest instead of a specific person, meaning

IMO mastodon failed to replace Twitter because high profiles didn't migrate. but in Reddits case, you follow an interest instead of a specific person, meaning if enough people are active in the tech community on Lemmy it can replace reddit much faster than mastodon can replace twitter, as it doesn't matter which users migrated.