Just so everyone is clear, I absolutely love this guy's channel. I'm NOT trolling out of spite. Trolling can be fun, if you do it right. ... https://www.youtube.com/watch?v=3Lm1Q6HY49Y
Yes this is a fourth video of YouTube censorship. However, they've advanced their system to delete your comment on multiple videos and on replies to comments.
For example, you could reply to a comment that was already posted and the system wouldn't delete it. NOW IT WILL
FURTHERMORE, if you really wanted to make the comment you could go to another video by the same user and post it. Now the system delete it on whatever video you posted. Regardless if it's the users profile or not.
...
https://www.youtube.com/watch?v=T9wsOpI3tZ0