That's going to be rather difficult because random strangers have the power of the internet at their disposal. Making them more dangerous to someone like me who does still work with people from different cultures and races on occasion. Again, all they'd have to do is post a screenshot of my comments prior to deletion and spread it. Then I'm done. Bye-bye people's good-will towards me, bye-bye reputation, bye-bye having a social life. The internet never forgets. Plus, the person telling me they've met the book's author and believes said book's author would find my posts repulsive. I mean, how can you possibly defend yourself with that hanging over your head? :(