Self-explanatory.
This list is to help users manage their feeds by filtering out unwanted content. To avoid being included,... don't spam or otherwise post non-"social" content (e.g. replies to someone else's post that serves no other purpose than self-promotion).
"You like games? So do I."
—Cortana, quoting Dr. Catherine Halsey, HALO 3
This list is to help users manage their feeds by filtering out unwanted content. To avoid being included, consider utilizing appropriate content labels.
