For the sake of forensics, I’ll report back on the Discourse-being-Discourse front: verified that upload widget vs. drag-and-drop makes no difference to the 1-image-per-post new user limit (which is reassuring in a consistency sense at least!).
And a new discovery: maximum 3 user replies in a row, to someone else’s thread, which I discovered when pasting some related images into evansd2’s L-system fractals post.
Noting this stuff mostly out of a professional curiosity (for work I manage an online community running on its own custom forum software). None of it is a problem or anything; I can live with the temporary posting limits etc. Just my first time spending serious time with a Discourse instance, which I’ve known about for years. It’s interesting seeing it in action as commodity forum software.