I'm sure there is but I am looking for hastle free. "Joviex's Addon Settings Transfer (Update)" isn't updated and since the change it now shows this...
I imagine if I choose to transfer the right character id's that I could still keep the addon working. I don't know a quick way to find out whos is whos though.
The correct answer is GetCurrentCharacterId() which returns a string with your long character ID (the thing that's stored in all addon SavedVars databases). This thread is the top result in search engines so this info had to be added.
Code:
GetCurrentCharacterId()
If you just want to see your own ID in chat, type this: