“YouTube, Twitter, FR and DU are all *exactly the same* as far as the law goes.”
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Nope. Youtube has financial agreements wherein they pay content producers, it’s a business relaationship and subject to business law (in addition to civil and criminal).
Now, maybe you have some kind of deal with FR wherein they pay you for commenting, but I suspect it’s a unique business association among most FR users.
So, you got apples and oranges.
Say what?
You mean beyond just placing ads on their videos?
If so he'll have a case against them for breach of contract. I'm not holding my breath.