I don't get pissed off at public records being made available to the public. I get pissed off at unreasonable legal requirements that lead to things being entered into the public record in the first place, and I fully support every individual's right to make his/her own decision on whether their ownership and use of firearms should be a matter of public record or not.
People who follow the law in this case wind up unreasonably burdened and subject to information disclosure beyond their control. People who do not follow the law aren't burdened by it, and do as they like without the mere existence of the laws or threats of prison sentences doing anything to stop them from committing violent acts. Put simply: neither nanny state mentalities nor "tough on crime" policies actually work very well. See how this works?
Do you support privacy rights? I certainly do, and I support equality as well, meaning I don't pick and choose which citizens deserve privacy and which don't.
For the record, if you're planning on creating your own app to show who owns firearms, you can add me as your first entry. I gladly volunteer this information; kindly respect the privacy of others until you're told otherwise. Have a nice day, champ.