@abulling @ElenLeFoll @floe @flowdie @jbigham @harvardhci @cmuhcii @hcigroup @jovermeulen easier said than done. The issue is always that such venues are only usable by senior academics; ECRs are reliant on prestigious, existing venues to have a chance at an academic job (if that is their thing).
The first thing that needs to happen is changing tenure criteria to heavily favour such venues. Otherwise such endeavours are doomed to fail. Unfortunately, these ideas have been out there for at least a decade (or longer, that's just the time I've followed), but nobody does anything.
I've mostly given up on this issue after hearing a decade of "oh yes I support that" combined with record breaking lethargy from senior academics.