As of now the following post has a deleted answer: Is it possible to embed a YouTube video using LaTeX?
This answer is still visible within the 10K tools as an item that requires attention, even displayed as being deleted (through the shading/colour):
This is surely a bug. I'm running Google Chrome 24.0.1312.57 m and have cleared my cache.
A related (currently unanswered bug) regarding 10K tools is: Review flags doesn't match actual flags.
Not sure how reproducible these bugs are.