For those who recently joined or hesitant to join Talk Tiddlywiki (https://talk.tiddlywiki.org/)
I would recommend reading this Tips and Tricks
https://blog.discourse.org/2016/12/discourse-new-user-tips-and-tricks/
This help a lot for a smoother transition from Google group to Talk Tiddlywiki (https://talk.tiddlywiki.org/)