What do you mean? What old troll?.
The joke that I tried to pull.
I'm not sure if you've gathered from my posting here on NMA, but I'm from Serbia. I used to love screwing around with my countrymen saying they've descended from Ottomans or whomever just to see their reactions...which were sometimes very colorful.
I also used to troll Serbs online (who didn't know that I'm a Serb too) with the same rhetoric, which, (un)interestingly enough resulted in similar response.
Well, that "old troll" got boring over the years.
That being said, I do not ignore the fact that modern Serbs have (most likely) descended from the particular tribe of southern Slavs, but given that the Balkans is...well, Balkans, and that, for all we know, only Cthulhu hasn't set his foot and seed here, wrecking, murdering, conquering, raping and pillaging everything in the process like everyone else, I think it's safe to assume that the whole "slavic" element in genetics of the larger population is mostly lost or marginalized, being overwritten somewhere during the course of history.
Of course, that doesn't bar the "slavic" cultural identity or heritage, and I understand what you were getting at with the original post. I just thought I'd fuck around a bit.