I'm not sure anyone's reading this -- even the comment spammers seem to have given up on me -- but after several weeks of being incredibly busy and just too exhausted to blog or much of anything else not strictly necessary, I'm starting to recover, and I hope to back to more-or-less regular blogging soon.
Also, I think I have managed to solve the annoying problem with embedded YouTube videos playing automatically. If you have the problem on other sites you visit I'm afraid a general solution is not necessarily easy and depends on what browser you use. Even plug-ins specifically meant to block this "feature" often don't work. Do a search for "stop autplay" and your browser's name for more information. (I think the culprit here may actually be Adobe.)
It may take me a while to get around to turning autoplay off for older videos; there are a lot of them.