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Not an issue but it will help. People like rewarding original content creators, making them easy to tell if that's the case (as opposed to just a link to quality content or impostors) you are increasing chances for upvotes :-)

would a mention in the description of the video as well work?

Yes, same as you are listing Twitter that let twitter user easily tell that @ColdAsIceKrisPz on twitter is one who post videos on https://www.youtube.com/krispnatz channel

You can use something like:

or better yet link to frontend of your choice:


Steem: @krispnatz Steem / Steemit: https://steemit.com/@krispnatz Steem / Busy: https://busy.org/@krispnatz Steem / Steempeak: https://steempeak.com/@krispnatz