Mod to prevent users from seeing all replies except of a certain group?

[Cryo]

I'm looking for a mod that allows users to reply to a thread, but they will only see the replies made to the thread that are from a certain user group. The purpose is to allow me to make a post asking for feedback and provide the users with much anonymity. PMs could be used, but there are other admins that need to read the replies as well, so it's not efficient.

Any assistance would be appreciated, I couldn't find the mod I was looking for through search.