It also depends on where you say said things (I see people post race- and gender-essentialist stuff on Facebook with their real name quite often, and nothing bad has happened to any of them as a result AFAIK), and which tone you use (sometimes truth isn't enough).
(But from what little I've read about the Summers incident, I agree the reaction was unfortunate.)
People want to tell everything instead of telling the best 15 words. They want to learn everything instead of the best 15 words. In this thread, instead post the best 15-words from a book you've read recently (or anything else). It has to stand on its own. It's not a summary, the whole value needs to be contained in those words.
I'll start in the comments below.
(Voted by the Schelling study group as the best exercise of the meeting.)