TL;DR: We have a Community Forum (yay!), you can come and join it here: community.crossref.org.
Community is fundamental to us at Crossref, we wouldn’t be where we are or achieve the great things we do without the involvement of you, our diverse and engaged members and users. Crossref was founded as a collaboration of publishers with the shared goal of making links between research outputs easier, building a foundational infrastructure making research easier to find, cite, link, assess, and re-use. It is at the very core of what we do and who we are. Our global community now includes publishers, libraries, government agencies, funders, researchers, universities, ambassadors, and more from over 140 countries. We are also actively part of the larger scholarly research community, which includes other open scholarly infrastructure organizations, metadata users and aggregators, open science initiatives, and others with shared aims and values.