I don't quite understand

What are you "not buying" about the annoying argument?  What you describe sounds very annoying.  Artosis says it's one possible solution, with a downside of being a pain in the ass; I don't see what's untrue about that statement.

Regardless of the age of the player, even if he explicitly cheated, it doesn't warrant the massive weight of the internet destroying his character.  The fact that he's only 17 means he could take this much much harder than somebody with more experience would and he doesn't deserve that.  His age doesn't excuse anything but it's important to realize he's still a kid.

When in doubt be nice.  Don't crucify.  Let due process take its course.