Please, look at articles such as: http://en.wikipedia.org/wiki/Macedonians , http://en.wikipedia.org/wiki/Macedonian_Slavs , http://en.wikipedia.org/wiki/Macedonian_denar and similar.
Greek nationalists, supported by one Bulgarian nationalist (just to say that Bulgarian Wikipedian community is not nationalist) are forcing naming (modern) Macedonians as "Macedonian Slavs".
Even (some) people on English Wikipedia think that they can vote about the name of one ethicity/nation. This is a horror. I urge to all of you to stop that (Greek) nationalist orgy there!
Wikipedia is not the place for nationalist propaganda.