You can go onto Open Street Map and tidy up the data. I would recommend surveying the actual situation first to ensure you don't mess anything up.

Generally, only addicts steal from poorer people.

And, where I am, you're more likely to have a gun if you're poor, because there's more exposure to crime, resulting in a much more realistic understanding that the police won't save you in an emergency.

Sudbury is 150k+ people so not exactly tiny in terms of Canadian cities (30th most populus).

UBC campus in Vancouver as well.

Same here, but just Lowes stores. That I know of. I surveiled the two local Lowes roughly a month ago and found two cameras not mapped, which I gleefully added myself. Want to send them a snail mail complaint at some point stating they won't be getting my business until they step back from turning us into a police state.