Also, make sure you're testing on memo.cash, not a development instance. I'm 99% sure it's blocking based on the referrer. Probably hit some auto-threshold.
I don't think so. It was all images that weren't already cached, not a single image. And my bookmarklet that adds the referrerpolicy="no-referrer" attribute makes them load immediately
No Problemo. I think once they see a certain threshold of referrals, they block it automatically because they don't want people just using it as an image host for their private site.
People prob do that to save bandwidth. They like make exceptions for big forums like reddit. They *might* white-list memo if someone asks them. But maybe we don't want to alert them.