Well, not anymore.

In other places, people didn't even know there was a leak until I asked them why my unique address was spammed. For example, one forum installed Tapatalk and found out this way that the plugin transferred the complete user database to Tapatalk. It was only when Tapatalk screwed up and spammed all addresses with a Beta notification that this was discovered.

People always assume that mail adresses getting spammed is just a fact of life. If you follow the leads a bit, you can see exactly where the leaks are. And if you disable leaked addresses and generate new ones, spam doesn't even reach you en masse.