1851
PSA: Lemmy votes can be manipulated
(feddit.nl)
A community dedicated to fediverse news and discussion.
Fediverse is a portmanteau of "federation" and "universe".
Getting started on Fediverse;
Assuming a users upvote history or karma ever meant anything, this demonstrates perfectly it's useless on Lemmy.
You can hide the numbers in the liftoff app (presumably other apps too). Hiding it for all users by default is obviously completely different though.