i'm sorry i'm not an admin i will give you three pieces of advice though first edit other pages and keep away from this guy second if you can't do that get a new user id just for those pages and try to stick within the policies of wikipedia don't let the guy in question know that you're you if another user breaches the policies note it on their talkpage politely and make a note for the case you will later bring against them if he protects pages he's editing blocks you for disputing content anything like that then note it just make sure you personally stay within the policies stay cool and stay polite third start an rfc you'll need to find someone else who has also suffered at this guy's hands if he's as bad as you make out it won't be hard to find someone if the rfc doesn't bring an outcome you can live with take your case to the arbcom they will almost certainly back the admin and make out you are full of shit so if you go that route just lay out your evidence and walk away don't get involved don't let it get to you or make you mad