Board Thread:General Discussion/@comment-6257883-20150328083505/@comment-4902411-20150328084809

Admins can block users for any reason they see fit. This includes blocking without any reason at all.

Where did you report the harassment? To staff?

The best you can do for now is try contacting them on their wall here on central and politely ask them to uplift the ban. If you feel like the admin is abusing their power, you could hold a discussion at said wiki for a community opinion. If you gain a consensus, contact staff with links to relevant discussions and they'll take the matter into their own hands.