It's not just about rep points - if multiple abuse reports are submitted against you, your account can get automatically disabled. Probably not an issue for you since you are not using your real name, and can thus create another anonymous account similar to the one you have now.
only -16? If it weighted, I think that person does not have much report power. It kinda suck because they didn't give you a chance to defend or correct your mistake. Last time I posted a blog and someone with very high report power down voted it, and that -40 points. Again it suck because I don't know what the issue was, and I don't have the opportunity to rectify it. Sometime I don't see how this down vote WITHOUT comment will help the community or the author/poster. At least give them a chance to fix the issue !!!
I've been working on this all weekend and in doing so I've found a fundamental problem with our colouriser that will probably require a full rewrite.
I'm happy I found the issue, depressed it's there, happy I get to rewrite it (I've wanted to for a while), frustrated that it needs a rewrite (I have no time!), happy that I get to add some new features, frustrated that...