There's also 2017revival, dw_community_promo, getting_started, and for keeping up with all kinds of fannish stuff, fandomcalendar -- that's just from looking at my own profile. Some of these are more active than others, but it's also always been my experience DW is welcoming and if you keep posting, other people will join in. And you can also find people from members listed on community profiles, or by searching interests.