Considering the perspective of a logged in user, simply give them the opportunity to deselect others by username and then record their deselections with their a

Considering the perspective of a logged in user, simply give them the opportunity to deselect others by username and then record their deselections with their account. This wouldn't require unique pages to be served, except for a deselected_users array to be picked up and processed at the client side. The same lightweight approach can be used give shape to a user's own view with stuff like: 'preferred users', 'out-right scum' etc. Same principles apply to personal topic preferences and their viewed ranking.