While I am * completely* in agreement with this particular person no longer showing up on every popular video, I do think that this is sort of a blow to the philosophy of User-Created and User-Generated content on that web-service.
We may not like everything on Youtube, but we are not obligated to click anything on the site we may dislike. Frankly, it is fairly obvious why you would or would not click her links.
The solution is also fairly archaic. A Personal Settings filter would have been less of a deliberate crackdown on someones creativity but still allow users to go about their day without seeing what they don't want to see.