It's not as common in Hong Kong nowadays. Perhaps due to complaints by neighbors (remember this is a super dense city), in recent years it's hard to find stinky

It's not as common in Hong Kong nowadays. Perhaps due to complaints by neighbors (remember this is a super dense city), in recent years it's hard to find stinky toufu, and even if I find any at all, they don't stink as much as they used to. Some decades ago the stink spread far and wide, multiple blocks at least. It was a great way to advertise when you didn't have internet advertisement. There are probably regional differences as well, the ones I recall having in Taiwan don't stink as much either, probably due to the same reasons. It's worth a try if you come across them. They actually just taste like normal fried toufu.