Even on reddit, there are two general buckets of forum style user: those who make it an identity, and those who rotate accounts and remain anonymous.(1) Piefed tends to favor the former and Lemmy the latter based on the feature matrix presented. I use Mastodon for the former. I still read reddit for my game and the news coverage is better (I have a multireddit of all the news subreddits, something Lemmy can't do yet).(2)

(1) these tend to trend with the type of content as I consume both; the former seems to be much more engaged in posting real world news, blog articles and the like, whereas the latter tend to enjoy the comics, memes, jokes and other lighthearted content. Hence mastodon is the serious place and lemmy is the fun comic place in my life. Piefed would be the serious version of Lemmy I guess? shrug

(2) aside, I don't like the Piefed webUI so beyond testing accounts with it, do not spend a lot of time using it. I like the Lemmy webUI much, much better and it's what I use a lot of the time. I've heard it can do something like mulitreddits but, well...