Some explain the rationale that getting to actually PLAY Warzones, Operations and Flashpoints somehow breaks the game. Cross-server group finding tools are one of the main reasons I went back to WoW after two years. "It's really a different game now," my brother said, and he was right - you didn't have to give head for 6 months to become part of some elitist jerk guild in order to get groups and progress.
Your sense of community can be better achieved with improved open world PvP, as opposed to deliberate and archaic restrictions on FPs / WZs. Prioritize the matchmaking system so that groups from the same server are always formed first, even in warzones against the opposing faction, so that whenever possible you are playing people that are "local" and can be "remembered" to gain a reputation.
When not available, proceed to 2nd argument line, where you cross-server match to fill the needs of the group / warzone.
Done. Ya got problems with that? I'll bookmark this thread and listen to your logic.