If they pull his IP while investigating him for AAS abuse, it won't matter what he edits. Have to have probable cause again. Even CID can't just start fucking around with a Soldier unless they have a reason. The worse OPSEC is the avatar pic if that is him. Is it an identifiable shirt? Location? Says he's in Germany and says he's in the service, can't be too many servicemembers over there these days...
No random whiz quiz will bust anyone for AAS. It's a whole different test, and if they have a reason they can test you. Even still, it has to be "more likely than not" evidence in the military, so you really have to step on your crank to get in those crosshairs.
Take it from someone who court martialed and chaptered more than a few people while in uniform.