Problem: Several requests for unblock cannot be handled in due time because of providers/tech depths of different organization mixing up networks which could legitimately edit the wikis with farms with open proxies, spam sources, etc. A quite common case are, also, private proxies on VPS or reverse proxies from different organizations hosted in third-party farms.
Proposed solution: create a Special:GlobalBlockWhitelist page where a global block can be revoked for a certain IP or subnet falling in a blocked range
Who would benefit: dozens of users caught by global blocks
