Youtube allows you to AB test with up to 3 titles and thumbnails.
replyIt's almost certainly A/B test. Essentially everyone does it.
replyYou can even sometimes see when a list of videos on YT first loads and a given video has one title, and it suddenly switches to another without you reloading the page.
On several channels I watch, I've noticed the top comment is always along the lines of "who was here when the video title was XYZ" because you know it's going to change.
replyHave you noticed that has become more common recently? Because I have. It seems over the past 3/4 months, reload and see a new title happens pretty much daily to me (it also seems to work because sometimes it causes me to click the video I didn't click with the old title).
replyIt was announced in December and took a while to catch.
replyhttps://support.google.com/youtube/thread/393332200/you-can-...
YouTube encourages A/B testing of both titles and thumbnails, but it could be either.
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