The bee was quite busy at work and didn't seem to care about me at all.
I haven't really used Flickr much until now even though I've had an account there for a long time. I can see that Flickr have a setting called "Safety level of this photo" with three options: Safe, Moderate, Restricted. These images were apparently "Moderate". I have switched them to "Safe" now.
Speaking of Flickr, I made a slight adjustment to the images after uploading them to Flickr so I processed some new jpeg's and overwrote the previous version. The Flickr uploader noticed that immediately and uploaded the images. I of course expected that it would replace the versions on Flickr since they state directly in the app that "we detect and ignore duplicates". Silly me to expect that to just work, I now have the same images twice on Flickr. Going to fix that now.