So it’s time for another Overflow thread. Please do not treat this as an Open Thread – the #overflow has a very separate purpose.
Overflow threads are set apart for side discussions (especially leeeengthy comments and perennial stoushes), as part of our system for keeping other threads on-topic. They are meant as constructive spaces to give these tangential engagements room to build without disrupting either the on-topic discussions on active threads or the break-from-the-routine vibe on the weekly open threads.
Discussions deemed off-topic and/or overly contentious on other threads are liable to be directed to the latest overflow thread, so as to avoid distracting thread clutter.
Please help us keep discussions focussed by making an effort to not cross the streams; volunteer to shift potentially thread-cluttering side-discussions/metacommentary on other threads to Overflow. To make it clear to readers where your Overflow discussion-starter is coming from, please include permalink(s) to and a short summary of the relevant comment(s) on whichever other thread has prompted your side-discussion.