It does. But after a while, reposts are allowed through. That's on purpose, because want good articles to have multiple chances at getting attention.
The reason for posting lists of previous discussions is not to boo reposts—I hope that's clear! It's to point curious readers in the direction of additional interesting comments.
The reason for posting lists of previous discussions is not to boo reposts—I hope that's clear! It's to point curious readers in the direction of additional interesting comments.