I'm sure there will be a lot of varying opinions of this. Mostly because some servers have more players than others. Personally I think my server is at the right amount of population. The economy is alright, every now and then there are shouts for pick ups, and I have a very nice linkshell. That being said I don't want it merged with another server, or have a server merged into it. However if you are on a dying or poor server maybe you should think about world transfer before asking to have the server shut down. Maybe instead they should have a free world transfer event and see how the chips fall. If enough people willing transfer out of a server then it might be time to merge it.