Long time ago I've posted a comment here. Surprisingly, now the delete X button is not available, but instead I can upvote it!!! Moreover, although my username is blue, there is no link to my username's page as usual. Is this a new feature or a bug?
That comment was posted from an account that was since deleted.
Unfortunately, after the redesign the names of deleted users in comments create the impression that the user still exists (they are not greyed out). I have reported this bug.