I agree they look that way until you start looking at the accounts posting them. That being said a lot of people send newsletters, and a lot of people use MailChimp (we do). MailChimp has been releasing a lot of UI changes lately, including a new editor that tries to accomplish what is shown in the Canvas video, albeit not very well.

Yeah quite surprising to see positive comments on HN, right? While I haven't tried this new editor from Campaign Monitor I can certainly understand why people are happy with their service. Their old content editor was really good and this seems like an improvement.