Oh my, well, is the dispute over place names? Or more substantive issues than that?
If the dispute is over place names, then subject to the advice of Germans I know, I am willing to decree what strikes me as the obviously correct solution: things are to be named in the German wikipedia what the majority of Germans call them, and things are to be named in the Polish wikipedia what the majority of Poles call them.
Also, is there any suspicion that a banned user (HJ) has returned? She was always stirring that topic up.
--Jimbo