From my post on Raddle:
Because I no longer check this place, I've set up a new Postmill instance for community support that I will check in on. It lives at community.postmill.xyz. One day I might decide to extend it beyond support forums, but it will not be a Raddle clone.
Issues and feature requests go on the issue tracker as usual.
In other news, I've decided to continue development of Postmill, but Raddle will no longer be its primary consumer. Instead, I will work towards realising my vision of what an online community should be. This might alienate some people, but I hope the end result will be worthwhile.