@TeamYouTube Looks like the Subscribe button is not available (grayed out) to you because you're looking at it through your own YouTube account. You can have a friend check it out through their account/device to confirm. Hope that helps clarify.
https://m.youtube.com/channel/UCvtmICysEaAyg-aMJtx0BpA …pic.twitter.com/COFN7INNT8
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