Not wanting to discourage you, but reddit.com/r/science does something pretty similar and very successfully - they have 6 million subscribers ,many comm enters

Not wanting to discourage you, but reddit.com/r/science does something pretty similar and very successfully - they have 6 million subscribers ,many comm enters are scientists, and the comment quality is usually very high , and they have the reddit mail support which is highly conductive to getting responses from people.