Hello, yes I have heard that pRO (Philippine Ragnarok Online) is closing down (and is still doing it) private servers and they just don't target huge-population servers but even small-population servers. We cannot (In my own understanding) go against it (Correct me if I'm wrong) when they file that because they have made a collaboration with Gravity Corp. and of course, they have retained the rights. As for the server owners, all we (you) can do would go against it or fight for your servers.
In my side on this case, I have a lot of questions and mostly they are "why's". Also, I tried to be a futuristic (I am futuristic), I can already foresee what will happen in pRO (even their motives. I hope I am wrong though), and no matter how many servers they brought down, passionate owners will rise up and I bet, pRO will just become another pile of history (this is based on what I see in their motives). As of now, removing private servers will add more to their advantage right? Small servers - more players in one server. Probably that's the reason or maybe they've become more strict to it. Well. I do not know. Let's just see in the distant future, what it will become.