You have said that some sites like xkcd have a permanent downweight. Is it only a domain by domain thing? If it can be story by story then you or the editors ca

You have said that some sites like xkcd have a permanent downweight. Is it only a domain by domain thing? If it can be story by story then you or the editors can just flag stories as lightweight to tweak the front page at will, or push a second type of flag to the community at the expense of some extra complexity.