[johnhiler]

Role Manager only works on version 1.0 and up…

_ck_ just wrote a plugin last week that removes the ability for moderators to see IPs anywhere in bbPress:

https://bbpress.org/forums/topic/how-do-i-remove-the-posters-ip-address-from-the-post-display#post-55575

Just stick it in a plugin information wrapper:

https://codex.wordpress.org/Writing_a_Plugin#Standard_Plugin_Information

And you should be good to go!