Short, concise description of the idea
we've got a 'friends' list-- it only makes sense to have an 'enemies' list.
Full description of the idea
i was thinking the other day that since lj has a 'friends' list, why not have an 'enemies' list too? you know, the people that you really don't like and would rather pull your fingernails out than add them to your friends list, but you read their journals anyway. having an 'enemies' list would be a convenient way to read all their journals without having to typing in usernames every time. i'm somewhat serious. really. i know it sounds kind of rude, but that's reality. it could be really helpful. it could even be private so no one else could see who your 'enemies' are. users could have the option of hiding their 'enemies of' list.
An ordered list of benefits
An ordered list of problems/issues involved
An organized list, or a few short paragraphs detailing suggestions for implementation