To be fair, OP didn't say anything about being at the game. Could be at home.
9x 4% 12.5oz beers in 3 hours is quite a lot, but it's definitely something that could be accomplished without the person necessarily having a problem. I know plenty of people who are not alcoholics but have stories of one-off nights like that with friends.
Definitely don't do this in a public, child-friendly venu though. That would be grossly irresponsible.
A lot of HNers are quite puritanical about alcohol and think it cannot ever be enjoyed responsibly, and that anyone who has ever overdone it a bit has a serious problem.
As you and others have said, this is maybe a bit much to have over 3 hours, but doesn't necessarily mean anything on its own. This is roughly six 500ml beers (plus one half), at a rate of one beer every 30 minutes. The bigger issue would be fetching the beer and going to the toilet - you'd be up and down constantly.
9x 4% 12.5oz beers in 3 hours is quite a lot, but it's definitely something that could be accomplished without the person necessarily having a problem. I know plenty of people who are not alcoholics but have stories of one-off nights like that with friends.
Definitely don't do this in a public, child-friendly venu though. That would be grossly irresponsible.