I made a post about this on the feature request board: https://help.antisoftware.club/support/discussions/topics/62000185103
Basically, I've noticed a lot of duplicate tags that start with a #. This is likely from folks copy and pasting their tags and not removing the # manually. I feel the site should do that work for them. That way it will clean up a lot of tags and make sure they're being seen by the folks following them.