I'm turning right on a Red unless there's a sign specifically stating not to. It's what people behind me would expect me to do, and being predictable is usually the safe thing to do and decreases the chance of road rage.
Note: We have ONE intersection in town that says "No right on red" and is meant to deter drivers from using a certain side-street. It was put up to pacify a bunch of whiny (but influential) residents who felt there were too many cars using "their" road. I'm not sure if disobeying it would be an HTA offence or it it's just a city by-law. Most cars ignore it and turn.
The speed limit on this side-street was also reduced to 40kmh, for no other reason than to appease the residents living there. I'm not sure if a municipality can legally enforce an artificially low speed limit (for reasons other than safely) but I regularly see the local LEO's running radar (*or) laser on it.