I did not downvote you either, but I think branding is a concept that is pretty important to most of us. How the major companies handle the evolution of their brand is pretty interesting, especially the subtle aspects that we see every day but might not think about.

I did not downvote you but I can understand it, something changed on one of the most known pages in the world, one which also happens to be extremely minimalistic making any change probably newsworthy. Also, favicons are a little bit like a logo for a company, people will see that icon on their browsers all the time. I'd say it is interesting enough to have been submitted to this community.