So here was the conundrum: Continue trusting the sorting algorithm by posting and sharing links to a very small obliging audience (as well as continuing to read and comment on links shared by another, but not necessarily the same small group), or change something? I went for the deactivation experiment. So far so good (I think?).
At least Twitter has a larger pool of "talent" to start with, but it still doesn't make "curation" any easier and most users* would probably concede it's a massive waste of time. Admittedly, Facebook Memories has made me realise that past-me is a poorer version of current-me and if the trend (hopefully) continues, future-me will also cringe at current-me.
Seriously, there's so little time to waste: https://waitbutwhy.com/2014/05/life-weeks.html
* Of course, there's probably a minority who have gotten employment or work connections through Twitter but I'd say that's a small minority compared to main userbase.
I know it's not optimal because Twitter neglects it, but I find the lists feature to be useful enough for curation.
I follow quite a few accounts on separate lists that I wouldn't want to follow all the time in my main feed.