@[email protected] that door swings both ways; people can downvote you without any accountability. What if you want to bite them? What if an anonymous army of downvoters brigades all your posts with downvotes? You’d have no way of knowing who to block.
@[email protected] more of a pro than a con; large instances are less likely to be defederated, for the same reason that no email provider would ever block “gmail.com”.