Not sure how actively AOL is used

Perhaps more than you think.

I was recently looking through an e-mail distribution list that my company uses and was surprised how many @aol.coms were on there. Easily hundreds.

People in the tech bubble vastly underestimate the number of @aol.com, @yahoo.com, @hotmail.com, @earthlink.net and other legacy e-mail addresses regular people still use. After all, it's their e-mail address. Why would they ever change it?