I know no one care about this

I saw my 2nd ad for mobile legends Even I installed it LOL BTW I never see ad for vg in youtube

Well, ML got 1.6 millions of daily players just from samsung phones (then you need to add all the other android devices and iphones). And is the only mobile MOBA that grows and still fast, they can afford to advertise the game + to add content and polish the experience rapidly.