And let me give you some examples from other sides (aka other languages):
*I don't know if you are Macedonian (see? When I use a language different from my own I respect it's rules), but if you are, then I'm sure you're very familiar with terms like "Grekoman", "Aegean Macedonia", "Solun" etc. So, let me inform you, if you don't know, that even though those terms are strictly connected with the everyday life, the culture and the consciousness of a Macedonian-speaking and a Bulgarian-speaking person, for Greeks are insulting, especially when they are used in Greek (and as about Wikipedia also in a language different from the couple I've mentioned). I can give more examples of the "behaviour" of other languages towards
*As about myself, I fully respect that a person of Macedonian (as you can see in English I use the worldwide term, not the one of my own language) or Bulgarian origin consider these terms as inseparable part of his/her everyday language, and I also have the good faith that this happens because it's just the way he/she learned to call them.