Think of it less as categorizing your friends as tagging them.
Facebook is the zenith of "explicitly categorizing friends" into friend groups, and as you surmise it's a pretty bad way to go. That, and their group-visibility settings on posts is clunky enough to make me think it's designed so that people stop trying and just post everything to everybody.
Facebook is the zenith of "explicitly categorizing friends" into friend groups, and as you surmise it's a pretty bad way to go. That, and their group-visibility settings on posts is clunky enough to make me think it's designed so that people stop trying and just post everything to everybody.