Perhaps consider reaching out to the security folk at e.g. Tor Project? They've multiple mailing lists (https://lists.torproject.org/cgi-bin/mailman/listinfo) and many friendly people on them. In particular, 'tor-talk' often finds itself engaged in all sorts of general Tor / anonymity-related discussions as well as Tor-specific technical nuances. It is usually rather welcoming and often sensitive to more or less any security-related (especially when Tor software does / can play a role in them) issues and questions.

Of course this is the 'less hairy' technical side of anonymity; probably what you have in mind would involve social as well as network/software-based infrastructure, especially if outreach / readership (as you said) are important (and I suppose they would be rather central, as impact would basically (maybe) very much be / is a function of / directly depend(s) on readership sizes etc.) I suppose one would need to answer questions such as e.g. how to maintain an image of credibility(?) etc. if article authors only use pseudonyms. But making sure anonymity of the publishers / authors is possible at least in the narrow internet networking sense might be a start, perhaps.