What the heck is a Slavic Greek? That’s some kind of an oxymoron, surely. Unless you mean a Slav with a Greek nationality (or Slavophone Greeks, as Greece calls them).

As per the topic – depends if we go by stereotypes. The view of the stereotypical Bulgarian towards the stereotypical Macedonian would, I guess, be mostly of ridicule (because the stereotypical Macedonian is also a Macedonist and the latter are indeed ridiculous (but worry not, Macedonians – we like to ridicule all Bulgarians equally, not just you :tongue: )). Of course, there’s also that lingering feeling of betrayal, for having fallen to the rabid anti-Bulgarian propaganda that is Macedonism, so some Bulgarians, especially the more nationalistic ones, would also feel some disdain (and/or pity), the way you would feel about a janissary. I think that’s basically it, if we go by stereotypes. And considering stereotypes are especially strong in the Internet, it’s no surprise that flame wars are a somewhat common thing. In real life things are a bit better though – I know enough ordinary Bulgarians who are friends with ordinary Macedonians. Heck, I’ve been a friend with a Macedonist Macedonian, so it’s certainly doable (we’re both relatively intelligent and civilised persons though, so we preferred to just joke about the issue and not press it much).
And my personal opinion is that modern Macedonians are not Bulgarians (big surprise! ba-dum-tss). Of course, both as a Bulgarian and as someone interested in objective history, I believe the majority of their ancestors were Bulgarian a century ago. But the vast majority of the modern Vardar Macedonians don’t consider themselves Bulgarian today and therefore they aren’t. Self-identity is not a genetic trait, after all – otherwise, South Slavs wouldn’t even exist. 😉 

Also, @Sviatogor – I think you’re confusing the issue. The term “Macedonian” has several different meanings. For most Slavs in Vardar Macedonia it’s an ethnic identity. For the non-Slavs in the Republic of Macedonia (I prefer that name, considering we were the first to recognise them with it, after all), it’s a nationality (similarly, our Turks and Gypsies are also Bulgarian citizens and when the latter go to wreck and plunder the Western countries, they always say “we’re Bulgarians”). And, lastly, the oldest meaning is the regional one – historically this was ethnically inclusive (i.e. the local Bulgarians, Greeks, Vlachs etc were all Macedonians by region), although for Bulgaria (and I think Greece, in the case of Aegean Macedonia) it’s also an ethnographic regionality. F.e. by regionality I am 3/4 Shop and 1/4 Macedonian, the latter on my father’s side. Of course, technically, my father is 1/2 Macedonian himself, although he considers himself as Macedonian only (family issues), but only on a regional/ethnographic basis. As an ethnicity he consider himself fully Bulgarian and like many other Bulgarian Macedonians (as aaaaa said) his views on the “ethnic Macedonians”, the Macedonists in particular, are understandably negative. It probably has something to do with his family not being very happy to be forced to “convert” to Macedonism in the 40s-50s (by our own Bulgarian government no less (the commies, of course (and, needless to say, his view on the commies is far worse))) and thus those who still support that doctrine, despite the freedom of information they now have, are seen as… misguided, at best. Likewise, when I was younger, a teenager and quite more nationalistic and enthusiastic than today, I also thought that the Macedonians in the Rep of Macedonia simply lack information and if I would show it to them, with the liberating power of the internet, they’d come to their senses and accept their roots. Of course, I soon found out that Macedonians (both ethnic and regional) are at least as hard-headed as Shops are famed to be (so you can imagine what kind of a mix I am myself). I should’ve seen it coming though – I’ve argued before both with my father and with his cousin from the Macedonian line and I know from experience that you can’t argue with such people, at least not logically (though at least they didn’t shower me with curses, which is the usual response of the keyboard warriors all over the Balkans). In any case, all this is further confused by the aforementioned fact that the region of Macedonia also includes Aegean Macedonia and, respectively, that the Greeks have a regional Macedonian identity as well (although most Greeks in Macedonia are Pontic refugees, IIRC). Add to that the truly stupid argument about the name that the Rep. of Macedonia and Greece are having (I’m on the side of the (Vardar) Macedonians on this one) and you get the recipe for a wonderful Balkan mish-mash.