> positive scores are shown by sort order
I don't believe it is quite so simple. Remark ordering also appears to incorporate
* freshness (new remarks get a moment at the top)
* reputation (remarks from high-karma accounts linger higher, longer)
and I may possibly have also observed:
* a penalty box: hidden downweighting, or reduction in effective karma, imposed by moderators upon troublesome users that weren't egregious enough to ban/shadowban.
That's all correct except "remarks from high-karma accounts linger higher, longer". Account karma doesn't affect ranking.