Yeah, its impossible. Say I post "black people are subhuman." I could be trolling (intentionally provoking emotional responses for the lulz) or that could be m

Yeah, its impossible. Say I post "black people are subhuman." I could be trolling (intentionally provoking emotional responses for the lulz) or that could be my actual honest to goodness opinion. You just don't know. There's also no polite way to express that opinion and that's the same for many, many opinions.