I used to let it cool to pitching temps, but I've discovered there's no need to do that. Now I bring it to a boil and let it sit for 10 or 15 minutes just to kill any bacteria, then dump it in the bucket. I'd say the temp is probably still up around 170F. Your small amount of hot liquid will be quickly cooled by the 5 gallons of wort you're racking on top of it.
"They don't think it be like it is, but it do." - Oscar Gamble
"It is what it is." -Erich Fried