Heh, I guess I jumped right in. Anyway, I find two logical flaws in your argument. First: just because some Bulgarian editors may be misinterpreting or abusing the category system, why should we? Second: what if every article were subjected to your line of thinking? For instance, what if someone decided that Category:Communes in Cluj County was too inaccessible a place for Apahida, and decided to add in Category:Geography of Romania, and then someone did the same for Iclod, and pretty soon, that category ended up with ~3000 entries? Well, for one, it would become pretty useless, don't you think? Which is why we have Category:Populated places in Cluj County, Category:Cluj County, Category:Geography of Transylvania (but not, incidentally, Category:Geography of Moldavia and Category:Geography of Wallachia). Everything in its proper place.
Plus, there's an actual guideline meant to be followed: WP:CAT, which speaks of "the general rule that pages are not placed in both a category and its subcategory". I understand your problems with the system, but it is what we have for now.
OK, I've tried it on Ziridava. -  Talk