Full disclosure: yes, it's my tweet. I reposted it not for the sake of self-promotion, but because I believe this may be important, and I am interested in more

Full disclosure: yes, it's my tweet. I reposted it not for the sake of self-promotion, but because I believe this may be important, and I am interested in more attempts to reproduce this "bug". Regarding your comments: my history has been disabled 2 years ago, and it had been guarding me from having unrelated stuff in recommendations well enough. Few months ago I noticed that random clicks on YT links started affecting my recommendations. So it's obviously not a caching error, and it persists for noticeable time as well. Time when the issue first happened doesn't correlate with GDPR either.