It seems like you should think for a while about what exactly you want, rather than just proposing mechanisms and then evaluating whether you like them or not.

Fair enough. Apologies for wasting your time with undirected musings.

In terms of what I want, everything I can think of shares the property of being more useful in a more heterogenous environment. I put together a wishlist along these lines some months ago.But within an environment as homogenous as LW, none of that seems worth the effort.

That said, I would find it at least idly interesting to be able to switch among filters (e.g., "Things EY would upvote", "Things Yvain would upvote", etc.), especially composite filters (e.g., "Things EY would upvote that aren't things Yvain would upvote," "90% things EY would upvote and 10% things he wouldn't", etc.).