This is off-topic, but since PG reads this thread:
Please add back the "by " in front of each comment. It was useful because if I wanted to see all comments by PG on a page, I could Ctrl-F and just look for "by pg" but now I can't -- if I just search for "pg" I get people talking about you, rather than only comments by you.
A very small UI tweak probably to remove clutter, but it served a purpose, albeit a very small one. :-)
-David