Everyone please take a moment of silence for the decency that seems to be dying here.
Cooperation with other guilds, as we have with Onslaught, is decent. Expecting to maintain your monopoly then complaining and demanding bans when it stops going your way is not.
Your summon alts were so unfair the team decided to fix them and prevent you from continuing to do it. The ability to communicate with the opposing faction is also widely available, you can have horde characters on the same faction as alliance characters on this server.
You say that forbidding smaller alliance raid guilds from giving kills to Horde (or vice-versa) would discourage them from trying to get world bosses? Has anyone on this server ever heard of fair game where everyone just tries their best and the most lucky/dedicated party wins?
The most dedicated party did win last night, just as they did on Kazzak last week.