"Screen all comments" should withhold notifications until owner approval
Short, concise description of the idea
When a user chooses to screen comments, and User A responds to User B, User B should not get a notification until the owner unscreens the comment.
Full description of the idea
Right now, if my friend Fred comments on one of my entries and I unscreen it, then stranger June replies to Fred abusively and I choose not to unscreen her comment, Fred receives the abuse anyway.
Alternately, if June's comment was actually very pleasant but I didn't manage to unscreen it for a few hours, Fred got the notification immediately but could not reply to it until then. Fred gets no notification of if and when the comment may be replied to. In most cases, Fred will give up and not bother replying at all.
An ordered list of benefits
Is consistent with the concept of screening
You never see comments you can't actually reply to
Small benefit, but good too: When I reply to comments on my own journal, realizing too late I've made a mistake, I can go back and create a new comment without unscreening the bad one, then delete the bad one, and the recipient will never see or reply to the bad one, which would (and often does) break the threading.
An ordered list of problems/issues involved
Journal owners could no longer reply to comments invisibly; they must unscreen and re-screen their replies.
If a screening user dies, or is otherwise kept from the 'net, others cannot reply to each other in his/her absence.
No big disadvantages, but:
An organized list, or a few short paragraphs detailing suggestions for implementation
The email would have to fire when a comment is unscreened, instead of being part of the posting process. Presumably the code would be edited to say "if screening does not apply, send notification to Fred."
Then when unscreening, the Fred-notification feature would fire, regardless of journal preferences.
Probably wise to check whether a comment has been unscreened and re-screened and unscreened, to cut down on useless emailing, but not necessary.
Presumably the text of the email would be something like "boymaenad has unscreened this comment." This way, the email could be triggered repeatedly if the comment is unscreened repeatedly, and it wouldn't lead the user to believe that multiple identical replies exist.
I really really really really still think this is a good idea: http://www.livejournal.com/community/suggestions/161867.html