Hi all,
Even if the new members aren’t in academic music theory, it might be nice to keep the platform as a way of just having our research have a bit wider of a reach. That way our research might be read by a few more people.
Of course, there’s a risk of a heavy moderation burden if the group ever stops being quiet. My suggestion would be to not abolish the group, but only allow a few people to submit posts—either by manual post approval, or by simply disabling posting for all but a few people (maybe make all the SMT members “moderators”). This way it could continue serving the way it is now (exclusively as an announcement board, i.e. for journal articles) while remaining visible to non-specialists who might be interested.