No, I don't receive any mass-delivered email that opted-in for, because if I wanted to read something generic I would go to the relevant website or blog. I do, of course, receive some 'group email' which is equally relevant to all the recipients, but the sender obviously had all of us, recipients, in mind when writing the email. And I'm not even opposed to mass-emails, it's just obvious that for the most part these emails are not relevant to the recipients, and adding any styling to these advertisements isn't making them any more relevant or useful.
I frequently receive marketing emails from sites I never opted into. Either the site didn't provide a choice to opt-in or opt-out on the same form where I provided my e-mail address or they ignored my preference.