This would be useful to prevent new users from abusing signatures. It would also allow forums to incentivize members to work towards being able to have a signature.
How do you hide invisible users?
So on my forum, if you check which users are online, you can see people who have set their status to "invisible". When I try this on community.nodebb.org, all the invisible people disappear!
Does this witchery come with magical CSS? And if so, what are you doing?
Admins see users even if they set their status to offline.