I run a niche site used primarily by redditors, and IE usage is around 2%. A tech blog I write has around 4% IE usage.
However, Wikipedia reports about 30% of their users are on IE .
IE is on the decline but it can't be dismissed yet .
My G/A account includes a consumer-focused site getting millions of UVs monthly, IE accounting for 49% market share, of which only 80% are IE8/9.
On the other hand my blog just had 20K visitors from HN, 65% on Chrome.