I feel like this has already been real-world tested, and manual sorting loses to algorithms. Facebook had categories or lists (can&#x27;t remember what they called them) and few people used them. Google+ had the &quot;circles&quot; as a key differentiator vs. Facebook, and it did not help them compete at all.<p>I think social media lists are one of those ideas that seems great in theory, but whose value is dynamically unstable in real life.<p>Lists are only valuable if they are well-maintained. But maintainence takes time and attention, which are not always available. And once lists start to be compromised, even a little, then it will take even <i>more</i> time and attention to fix them. Which makes it even more unlikely they&#x27;ll be fixed.<p>Obviously lists work for you, but it seems like they don&#x27;t for most folks.