The issue with posting the maps is that it can put people at risk.
If you're a bad guy, you can use this sort of information to find victims. Get a list of people with guns and cross-reference it with professions where the cash-based nature of the business makes it likely that folks have unreported money that can't be deposited in the bank. People who own laundries, tradesmen, jewelers, etc.
This sort of thing happened in my town in the 80's. Someone broke into a locksmith shop and took records of safe installations and re-keying. There were a number of subsequent burglaries of home safes owned by people with jewelry industry ties that went unreported until someone was assaulted when they interrupted a robbery.
This is especially an issue in a NYC or other places where handgun registration is a really onerous process. If you made a FOIL request and also asked for the type of handgun permit (target, carry, concealed carry, etc), it would be an even bigger personal safety risk.
If you're a bad guy, you can use this sort of information to find victims. Get a list of people with guns and cross-reference it with professions where the cash-based nature of the business makes it likely that folks have unreported money that can't be deposited in the bank. People who own laundries, tradesmen, jewelers, etc.
This sort of thing happened in my town in the 80's. Someone broke into a locksmith shop and took records of safe installations and re-keying. There were a number of subsequent burglaries of home safes owned by people with jewelry industry ties that went unreported until someone was assaulted when they interrupted a robbery.
This is especially an issue in a NYC or other places where handgun registration is a really onerous process. If you made a FOIL request and also asked for the type of handgun permit (target, carry, concealed carry, etc), it would be an even bigger personal safety risk.