Several. They are quoted in some detail in the open letter. Some are patently silly, such as disagreeing with the use of "they" as a gender-neutral pronoun, sin

Several. They are quoted in some detail in the open letter. Some are patently silly, such as disagreeing with the use of "they" as a gender-neutral pronoun, since he simply prefers other alternatives and has indeed been attentive to that problem since before it hit the mainstream in recent years. I guess the most unpopular ones are his comments regarding relationships with minors... Regardless of strongly disagreeing with him, I lean towards freedom of speech on this one. EDIT: I also must say I haven't read his comments in full, so it's possible he said things about this which I'm not aware of.