Why stop there? Why not add Nijisanji, VOMS, or even the fucking space station stream?
A few days after /jp/ noticed, 5ch caught wind of the tags, and conveniently now all of her metadata tags are scrubbed. Convenient, for her little internet defense force to claim that it was the algorhythm automatically tagging; or that metatags don't actually affect anything; or that it was definitely her friend who helped her set up who did it, or still, that it was all justified.
Checking page source for metadata tags now contains:
<meta property="al:android:app_name" content="YouTube"><meta property="al:android:package" content="com.google.android.youtube"><meta property="og:video:tag" content="VTuber"><meta property="og:video:tag" content="バーチャルYoutuber"><meta property="og:video:tag" content="天使うと"><meta property="og:video:tag" content="Amatsukauto"><meta property="fb:app_id" content="87741124305"><meta name="twitter

ard" content="player">
The intersection of the number of shitheads who want to make the anime girl say pog and the people who still haven't been sufficiently robbed is too low.
Again, cope. This was a very blatant glow job and it worked, because many are all too willing to white knight for grifters and pay them for the privilege.