K-man posts this one about every other day:
Just a reminder — this is a Times blog, so obscenities — even mild ones that you use all the, um, fleeting time — will get your comment deleted.
Why, oh why, won't the cursers listen?
That's Professor Whitehead. Calling George Carlin. NSFW language (which only makes it more likely that you'll click it). How many dirty words can you not write in a NYT blog comment?