Lim Goon is done with maple.

There can be a difference. From most hobbies, there's always something left behind after you quit them. If your hobby is something that requires studying, you're left with the knowledge about it (this one applies to all of them actually), If it is related to phisical work, your body will always remember how to perform them to some extent and you can gain physical strengthening (or injuries), but in MS and videogames in general, the moment you quit, the moment all the time and everything you've spent goes to waste. There are exceptions of course, but unless Limgoon sells all his items/account for real money before quitting, this can be applied or not to him.

You buy a ticket to a ball game, or movie, or show, or museum, or amusement park, or cruise around the world. You enjoy it for an hour or a day or a week, and then it ends and you have nothing but memories and maybe photos. Rarely, a new friend.
Some people spend hundreds or thousands following their favorite team around the country, or going to the Olympics, or buying a season pass to the opera, or whatever entertainment they enjoy. And they are still left with nothing but memories when it's over.
A few people are rich enough to pay millions for top-billed artists to play a private concert for them. And when it's over, yeah, same thing.

I really don't see how it's anyone's business how other people spend their entertainment budget and/or spare time (as long as they're doing it within the law etc).