Spies pretending to be gamers online is… a far cry from James Bond. Who are these people.
(1) "life is not a [removed] movie" or (2) "get a hobby/friend; mind your own business". Today, it seems to be the former.
Putting aside my reservations about power, authoritarianism and my trust of the US Government, I'd be pretty shocked and nearly appalled if they didn't do this. Between police forces and the military, authoritarian powers in the US give billions to private companies in the name of espionage and defense. I think there's a certain LOTR-namesaked company that is a known name around here.
Why would the FBI be any different?
It's collecting and analyzing information.