The temple karma vendors should be made accessible only to those in their own, home server.
I recently attempted Balthazar several times without success mostly because of the lack of others willing to help. It seems my server (Anvil Rock) hardly ever does the temples anymore, especially Balthazar. Part of this, I feel, is because it is easy to just guest on another server, which has it open, and get your obsidian shards or whatever that way. If people were forced to do the event in their home world in order to get the gear and shards, maybe more would start doing them. Just a thought.
Pardric Trueshot
Anvil Rock
The Rangers Table [TRT]