There are quite a few blogs based on (the principles) of blogger.com.
As a visitor you can read the articles aka. posts,
in many cases you can also add your own comments to those posts,
sometimes even anonymously - not using an account.
If you have commented on blogger posts, you probably know you can structure your input
using line breaks - at least that was the case on the blogger sites I have visited up to now.
There is another feature of those blogger sites, that is perhaps not yet that widely known:
You can use a limited set of HTML code to format your comments.
