I believe the answer to this choice of words comes from pg's essay on what we tell kids. It's inappropriate. Especially as a headline.

I thought it was humorous. Sometimes you have to express your raw feelings with crude words :)

If I could upmod you 10x, I would sir. Must be a lot of O'Reilly fans here.

It's just a fucking word.

"Such" language? How do you mean? Is the particular F U C K constellation of letters somehow objectively worse than, say, F U D G E or F R E A K? He made a "wrong choice"? You understood his point, yes? He got it across efficiently, yes? Seems to me he expressed himself perfectly fluently.

Words aren't just "constellations" of letters. This is a silly idea. Not only is it a poor excuse for using profanity, but it also takes the power out of taboo words.

greendestiny explained it well here: http://news.ycombinator.com/item?id=188634

What is the right choice? Please write out your equivalent of "Yahoo Mail fucking sucks" and we'll see if it conveys the same emotion and frustration in a similarly pointed fashion.