UI of TG shows me the list of communities (groups) sorted by latest post, with a badge with number of new posts. Suppose people could post to many communities with one click. Now TG's interface degrades for me - I'm likely to be in several groups on the same topic, and when I open them one by one I see the same posts auto-crossposted. 

A feed interface of 'all new stuff from your communities' works, because it dedups the posts. But what if I like TG's approach? Any thoughts on this?