1. There's no such thing as OCD niche communities. OCD has no niche communities. There's OCD, which is a community for topics that don't fit in any other community and there's POSH, which is for proof of sharing and none of them are on the list.
2. Both your communities, Shadow Hunters and Feathered Friends are on the list and are not incubated by OCD (if that's what you meant by OCD niche communities.

Some of the communities are part of the incubation program, others are not

This is what I wrote in my post.

This is why one should read the post first and then comment.