It is cute that I am rewarded with achievement messages and awards for simply looking at the different styles. That was certainly all the rage in 2011. I used to get quite excited getting to a new coffee shop level on Foursquare.
Nothing new year, it has been here for years.(2011) they made it a bit after the job/flash backlash to show that Adobe cared about Open Techs. Well Adobe always cared about Open Tech, it was the main driving force pushing Ecmascript 4, ironically , Microsoft didn't want it,even though they had Jscript.net which was exactly ES4, and are now trying to push Typescript as an alternative to JS. We lost 8 years because Microsoft cared more about Silverlight than making Javascript better...
Well, Microsoft has a huge responsability when it comes to the failure of ES4. No matter what you say. Especially since now everybody is talking about adding type declaration to javascript. We add these in ES4, MS clearly didn't want it because it would have made JS too powerful and threaten MS business.
How did they get those numbers for browser support? For example, for CSS3 animations they say that 53.91% can view that feature and they source caniuse.com, but if you actually go to the feature page on caniuse.com it says there's over 88% support.[1]
It's not exactly been kept up to date, most obviously by not taking into account IE10 and later. Support for things like box-shadows and gradients is pretty much at least 90% now, close to 100% in the western world.