Recently I've been trying to get more people to engage with me on itch.io, and to my surprise quite a few developers with an account here had never learned of the community forums opening! I'd say the platform itself needs better marketing, in more places, and possibly improved visibility of the social features right within the website. I say this because, for example, few members take advantage of the ability to make public collections, and cross-promotion is an important marketing tool.
Wish I could suggest how to accomplish these goals, but that's why I'm bringing it up. What's your opinion?