Webutation 2.0.4 is trully upgraded Rated 4 out of 5 stars
The add-on works very well, nothing to do with past versions.
Sites' ratings has no impact on site's access/page rendering.
Webutation.net is accessed via SSL, unavailable otherwise.
Webutation.net is not called on browser start (if start page not on the Web of course), and that's good.
Webutation.net sets a cookie when visited (not otherwise), absolutely not required if no login. Login allows participation to users' comments, and login is only via Facebook, which prevents users who have not a Facebook account from participating. Facebook is not the Web, be it reminded. Cookies were meant to keep user's data, not to set a flag. They all do it nowadays, those who don't are an exception.
I'm testing this add-on, perhaps for several days, my opinion is that of what it is as I write.