Posting a service does not have a thing to do with it if it is later encrypted. These people are smart enough to know it they put something up in the clear that it is going to be watched by unauthorized viewers, if they don't they are not as smart as I give them credit for. There are hundreds of reasons that services encrypt, and I would be willing to bet being posted on a public forum is not very high on the list. (The views expressed in this opinion are not necessarily the views of the management.)