Yes, that is a good course of action.

I think we'll just have to play it by ear as to when LW posts should be referenced. Promotion is the easiest heuristic, although even a poor post can generate good discussion. Depending on the circumstances, it may be appropriate to cite a post for the discussion or to cite a specific comment.

Right now, I say err on the side of inclusion. At worst, it can be deleted easily later. Even if it isn't perfectly relevant to the article it is in, a reference might inspire someone to move it to a better home.