It would be helpful to have more control over comment display/
moderation, e.g. let bloggers "hide" or "grey out" particular low-
quality comments, but let readers see this and select to display the
hidden comment in full if they wish.
I think this feature would be invaluable for bloggers who like to
steer the discussion and maintain high-quality comment threads, but
without excessive deleting of low-quality comments.
I have submitted this feature suggestion here:
http://help.blogger.com/?page=contact
Please follow suit (and leave a comment below) if you support this
feature suggestion. If there is enough demand, the good folks at
Blogger are more likely to implement it...