Like I said, it's not surprising that they expressed enthusiasm about the idea and content of Intentional Insights. They found out about rationality from InIn, and are volunteering about 2/3 of their time on average, because they're enthusiastic about this topic.

Blog comment spammers usually promote something with a link attached. These people involved with InIn take the time to introduce themselves and describe their perspectives, and do not post links.

More broadly, like I said earlier, InIn is an outward-facing arm of the rationality movement, not an inward-facing one. There's no need or interest for InIn to promote its content to LWs.