@Nersius you are really small minded. Do you think that's the reason they do that? Same reason the apple store is a walled garden right ? They do it for security.
Look up Themida. Search it since you know everything. It is a VIRUS and it is installed with PSO2. Not only is that true, technically, but you'd rather ignore that and keep flapping your lips about Microsoft.
Viruses have very advanced methods for obfuscating their inner workings. Themida protects the PSO2 executable, and it's technically software from a virus.
So why don't I go around saying you're putting viruses on your PC. That is honestly more true than the blabber coming out of your mouth. Now like I said, if you want a real victim to beat up, go complain to steam for leaving you in the cold for all these years. Not caring even enough to bring you PSO2 AT ALL. You like that more apparently. Or get a job and buy an Xbox, they are like $50 used these days, even little kids like you can afford them.