Just in case you were wondering how bloody stupid and ugly it looks if you one of the unlucky few that YouTube subjects to an experiment that it didn't seek anybody's permission for.
Yeah, @TeamYouTube, I think it's a lot worse. Could you stop now? https://twitter.com/Rhetamm/status/1012439801860182017 …
Might be benefits to this experiment and Youtube seems to be making a more changes than normal for the better. But every How-To on Youtube screams thumbnails and to unknowingly use creators as lab rats in a time they can't get subs to see their content is a distinct disadvantage.