For whatever my anec-data is worth, I run a sports stats website as a hobby (which has a decidedly non-developer user base), and when looking at my own user breakdown I found that less than .1% of my traffic was IE10 or below.
So while there's still likely an insular group at play, it's not limited to just developers.
Stats for older IE versions are similar for most sites/apps I'm involved with, though I know in some niches they are still important.
IE11 is a different case entirely, though. Almost everything still gets significant traffic on that platform, and in the business world supporting it is pretty much essential. Not much ES6 support there, though.
Yeah that's interesting. I might be biased since I'm in an exclusive B2B market.
Still though, it's hard to adopt a policy that axes even just 1% of your customer base just for the sake of easier development cycles when alternate options exist.
Oh, I completely agree. If in your circumstances older IE builds are still significant then of course you might want to continue supporting them. I'm just suggesting that that issue is somewhat separate to the original point, because in the case of ES6 support, even the latest version of IE doesn't have it.
So while there's still likely an insular group at play, it's not limited to just developers.