I am wondering why so many Polish guys are playing Warlight?
Has that something to do with advertisement?
Yeah, back in 2010 WarLight was advertised on some Polish humour website, which began a huge wave of Poles that (I think) probably gave WL the most traffic- over america- for a short while. It's not as obvious now, because gradually people from that wave are leaving / retiring, but you can obviously still see the impact it had.