Nobody has to explain for any of the parties involved. If they even bothered about how all this has affected the entire forum, they would've spoken up and discussed it. Nobody should be speculating the reasons for why they did what they did. They should be the ones to explain, even if this is not an "issue" to any of them, it clearly and obviously IS an issue to others.
Yes there are no guidelines or rules of such that were broken but this was, as Nilla said, common sense and consideration for others in this community and the usage of a feature on the forum. You want to extensively overuse something or heck, anything in life, be prepared for consequences. No matter how harmless you might think this is, when it involves a whole group of other people, an entire community, you have GOT to expect some consequences, good or bad.
Don't tell me that age among them has got anything to do with that basic understanding because as far as I know, almost everyone else here (young and adult alike) knows how the whole reputation system goes without misusing it - extensively or even to gloat about it because it is generally known how some people would feel about this. Even if they don't care about how it affects other people with this, it STILL does. So too bad and that's why we're here.
People are probably gonna be on my ass for saying this, or even speaking up, or think I'm a bad person for saying these things (I speak for myself and not for anyone else here so pardon me if my opinion bothers you), but that has already happened anyway - thus why I never said a thing yet.... but this matters to me, just as much as it matters to anyone else who feels for this issue. And I'm not on anyone's side, but my opinions do resonate with several people on here and I just can't wait to see a resolution for this.