How do you infer comment scores. The order of comments appears to be determined by both score and elapsed time. You'd have to have pretty exact knowledge of how it worked. Is that information available?
A suggestion- I understand what you're trying to convey with the point range, but for usability I'd prefer always seeing one number there. I don't mind a best guess and marking the score as an approximate number. Having to mentally parse ranges and less than symbols adds a slight speed bump.