I don’t doubt what you say. I have seen how “civilized” this forum can be. It’s basically mob rule rather than any form of reasonableness.
Sad but real story on this forum. There was this guy who got called “cringe” and then he took offense and called the other guy “cringed” in return. Then a 3rd guy Zaphiron01 came in, and only took an issue/called cringe the 2nd guy for fighting back. Not with the guy who started this “cringe-thing” in the first place. The 2nd guy who got called cringe pointed out Zaphiron01’s double standards. Zaphiron01 said that eye for an eye is dumb, this is why he has more issue with him rather than the one who started it, but at the same time feels forced to defend himself now that he is in this mess (so eye for an eye, which he himself says it’s dumb), anyway, the 2nd guy points this out and then gets banned by the moderator, despite him not being the one who started it and that guy Zaphiron01 obviously having double standards and being in the wrong here. I intervene telling the 2nd guy that it’s not worth it, there are better ways to spend your time, that it’s not about justice but simply you hate what they like and like what they hate. And I get banned for 1 week for saying it.
And the icing on the cake, the 3rd guy, Zaphiron01, liked my post where I said to the 2nd guy “yes Zaphiron01 is wrong but he doesn’t care that he is wrong, to him it’s not about being wrong”. He basically admitted that yes I have double standards, towards you and the 1st guy, and towards what I expect from you and what I do, and I don’t care.
So with Zaphiron01 admitting he was in the wrong the moderator decides to ban the 2nd guy for retaliating and me for telling him that even if he is right this is not going to help you with anything, there are better ways to spend your time.
So to summarize, the 1st guy who started it nothing happened to him, the 2nd guy who was fighting back got banned for fighting back, the 3rd guy who only took an issue/called cringe the 2nd guy for fighting back and had some dead obvious double standards (like you are worse than the 1st guy who started it cause eye for an eye is dumb, and then I’m in this mess so I have to defend myself (so eye for an eye)), nothing happened to him, and me the 4th guy who told the 2nd guy to stop it’s not worth it even if you’re right got banned.
This pretty much explains why there are so many trolls on this forum.
I try to avoid getting tangled in these now, and you should probably do too.
As even intervening to say “it’s not worth having this discussion even if you’re right, there are better ways to spend your time” can lead you to getting banned. But being the guy who started it or the guy who defends the one who started but attacks the one who retaliated is no issue apparently.
So yeah, don’t expect any rule of common sense on this forum. 
Now let’s get back to the topic and ignore the trolls.
A Balkan DLC indeed has the unique “perk” that only 1 extra campaign is needed, since we already have Dracula’s campaign for Vlachs. Although that campaign could really use a rework, historically is very… inaccurate, but the Magyars and Turks would be the natural campaign addition. It would also be 3 very connected campaigns just like Dukes of the East, with Mayars - Corvinus, Vlachs - Dracula, Turks - Mehmed the Conqueror. And for Serbs I think Stefan Dusan is the MVP, the short-lived Serbian Empire.