Highly innovative Y Combinator startups
t-a-w.blogspot.com
t-a-w.blogspot.com
That sounds like a good policy, and I think you should have stuck to it in this case and erred on the not-killing side.
I mean, I can understand killing obvious deliberate trolling (of the form "YC is gay ha ha ha") but in this case I think it's just not very well researched. Anyone looking at justin.tv's front page briefly (if, say, they were trying to write a blog post that involved looking at two dozen websites) could be forgiven for thinking it's a youtube clone -- the whole lower half of the page is devoted to pre-recorded videos with lengths in minute-second format.
Conversely, if you're sufficiently observant, you can stare into the mundane, and find enough of interest to last you a lifetime.
1. Take list someone else researched(successful YC startups).
2. Write first idea that comes to mind for each one(generally something obvious, wrong, and controversial).
3. Hit publish.
You get to capitalize on a number of proven traffic techniques--lists, pingbacks, and controversy--for only a few minutes of work.
But yeah, I'm not upvoting this.
For example: Wikis in general might be innovative, but a Wiki-style website builder is not.