Are you joking? No way! I feel like I need a shower after visiting the site when someone links to it. I see no point in misrepresenting the facts. There are people on FR that use curse words. It isn’t like over at DU but it also isn’t true that you will never see curse words on FR.
I'm not sure so called 'hate' sites are called hate based on curse words, but on their politically incorrect opposition to certain people and issues.
If the profanity is very bad the comment is usually pulled. Also, FR has a rule against using profanity, DU does not. The amount of profanity at DU is about 1000 times over and above anything I have ever seen on FR. If you don't believe that then go to DU and check it out. They use the F word as an adjective, verb, pronoun, noun and adverb.
And it's also true that if you object to profanity, you can call a Moderator and usually have a comment deleted or, at the least, have the poster warned.
Profanity is rare here because we self monitor.
As for anyone blocking FR but allowing DU - that's enough evidence for me to know that whoever is making that judgment is, for lack of a better word, evil.
So why would you associate with people like that?