I've noticed some server with a bans page for people to view the people that have been banned and the reason why they have been banned. This would be a cool thing to have. @CollinPotato @drtshock
I'm pretty sure this idea has been posted before. Staff said no to it because it would be too much work. I'm not sure how it is now though.
It has indeed been suggested before and yes it would be a lot of work to maintain a list of people that are banned. I'd say it's still a no.
Anyways, it's not really the entire community's business why a player was banned, that should be between the player and the server staff.