As googletorp said, don't worry too much about it. The worst thing that can happen is that you get one downvote, compared to all the upvotes you can get from the rest of the community.
The other answer and comments are removed (by a moderator or the original poster?), so it's hard to tell now if someone overreacted, but even if that happened: don't skip sleep on it. You're a human moderator, you can make mistakes. Tomorrow is a new day.
Maybe the remaining comments could be removed too, they are a bit useless now. Unless it is explained why messing with core code is something for a complete idiot: not every newcomer might know why that is not a good idea. Maybe that's a good idea if you end up in such an argument: don't try to persuade the other side, because that won't happen. Write for the other people that will read this question, that's also easier to stay objective in your language.