These people tend to coordinate on Discord & social media in general. This game was already something popular so any lolicons are already gonna be reading anything about it & sharing it with each other, but they do this shit when they attack people too. whenever you have one person speaking up against loli or shoto, you've got like 5 to 10 pedos swarming in at once to try & start an argument to harass them into silence or blocking them.
I know that Rin guy (Eurocuck Rev) does this shit out in the open with his fans where he'll coordinate to try & get people banned off Twitter for any perceived ToS violation if they don't support lolicon, all while breaking ToS left & right & bitching whenever his account gets a slap on the wrist.