When TCS made the switch to the new platform, I started getting all these emails, and I couldn't figure out how to get rid of them. From a thread in the FAQ/How-To forum, I figured out that everyone I was friends with on the old platform were now people I "followed" on the new platform. To stop the emails, I "unfollowed" everyone. I don't use the subscribe notification feature - I like to visit TCS to read threads rather than get things via email, so PLEASE know it's NOT YOU, it was just my way of dealing with emails I didn't want!