Hotmail is the world's largest webmail service. Bing has 15% of the search market; Google only has ~4 times that. Let's not pretend nobody uses these sites.
By "nobody" I mean very few people who go on the internet and create uproars. Hotmail is probably mainly used by grandmas and spammers.
Agreed. Myself and a few tech-savvy friends only use hotmail as a spam collector, you know, to sign up for one-time stuff that insists on getting a password from you.
I use Hotmail as my primary. Hate gmail UI. Yahoo is really the one I'd like the most but I have been using Hotmail since ages and love the skydrive integration.
Bing only has 15% in the US. Globally, it has less than 5% where Google is closer to 90%, so yes, for all intents and purposes, very few people (who would be affected by this policy) use Bing.