Yeah, so I'm from Alberta, Canada. The internet service I use often uses a type of proxy. So like, one day it'll say that I logged in from Ontario, and the next day, it'll say I logged in from Newfoundland. I don't mind this, it increases my feeling of my **** being private.
What I DO mind is how yahoo will freak out about it. I'll receive some security notice that's like "omg! You logged in from BC, but now you're in Alberta! You must be a hacker :o " So then I look at my recent logins and see all these places from Canada, and I'm like "yeah ok, that's fine" and then I see that apparently, I logged in from places like Egypt, Japan, Malaysia... Wtf! You warn me when I (a Canadian) log from Canada, but when someone logs in from Egypt and sends spam to random email addresses I've never seen before, you're like "yeah, that's cool."
Get some common sense! Like wtf.