On a membership site I'd like members to communicate without knowing the identities of of the members with whom they are communicating.

For example, when A logs in, A's page shows the most recent posts by B, C, and D but doesn't show the authors of those posts (doesn't show that they were posted by B, C and D).

I'd like A to be able to click on one of the posts to open a communication channel to the post's author and for the two to be able to communicate through the channel without either learning the other's identity.

I'm guessing this could work because my system would know the authors of the respective posts and communications and therefore could deliver them to the correct authors even though the communicators know only that they are writing the anonymous author of the post they clicked on to open the channel and they are writing the author of the message that came from a post.

I've been looking around for a few days and have not found an off the shelf or SAS to accomplish this. They all show the author of the post and show the author of the message.

Has anybody seen one?

Alternatively, any suggestion of what language I'd need a coder to know to create such a system?

Is javascript and Jquery a possibility?