Yes. FD censors the discussions. When something is posted that they don't like, they delete it, but, the initial email is still sent out. The delete discussions that have anything to do with people meeting off line, for example. This is because they want to be able to track this on the site. They've been trying hard to determine how to know whether one person met with another, etc. I believe this is why they have that survey sometimes popping up when you're messaging with someone asking you how many times you met. If someone posts a discussion for people to meet offline, they can no longer track the interactions, etc.
None of us like this.