LOL, and this is why I requested documentation review. Thanks for this.
As far as that level of separation goes, I’m not sure but you may be able to to socialize:linkable-model. The documentation on the package is horrible at this point. The socialize:likeable and socialize:commentable packages implement the linkable-model so their code is a good reference at this point. socialize:feed implements commentable and likeable as well.. Theses all should have proper documentation in the coming weeks.