[suggestion] Join in location option
That would be cool. I noticed when mousing over a guildies dot on the same map that it said he was on a different map instance, so the game can already tell you that much.
If something like this was added then it would undoubtably be added to friend’s list also. Normally it’s not a problem but in cases where one person is harassing or stalking another, not only can they friend them to see what map they are on even if blocked and have the game tell them when the person logs in or out, but with this feature he can get on the same map shard to find them. If ANet puts something like this in they should make it so that if one person blocks another, the blocked person can not see if they are logged on or off, what map they are on and not be able to friend them to use this feature.
Could have sworn this used to be an option in the guild window waaaaaay back.