Curious about moderator workload in the fediverse? Here's a couple data points:
In putting together our end-of-year report for Open Collective, I took a quick look at how much trash we had to take out this year for sfba.social.
Our mod team rejected 680 spam signups and suspended about 2700 accounts† in 2023. That's almost 10% of our total user base!
† I didn't do any rigorous categorization of reasons for suspending accounts, but most suspended accounts are spam/scams/bots. I think we tend to limit accounts and delete posts for other kinds of infractions, and we we've been lucky not to see too much truly awful stuff.