Upvoted (already following). Someone earlier suggested putting the user name in an additional column, and I'd like to second that.
I realize that one can hover over the "Link" and see the username that way; but, that requires time to hover, and also sometimes the link is too long and gets "..." treated, which needs even additional time to expand to the full URL.
So adding the username, or even, adding the full URL, as a right-most column, would be helpful. In fact, I'd add the username on the right, and then the URL to the right of that.
Thanks for the cleaning!