You need to be careful in the way you make comments on youtube or it will be automatically hidden. The comment will be viewable for you, but no one else will see it(it will be shadowbanned). Mentioning Steemit.com previously was auto hidden, I am sure Hive will be too if it isn't already.

Might have to get creative by leaving comments like this

"join H-I-V-E d-o-t b-l-o-g(take out the -'s) for freedom of censorship"