mb-squared I'm not manticle - he is much more patient than me (probably types a lot faster to) and might spend a couple of hours answering your question, and its a very reasonable question, just extremely provocative.
Please don't take offence, I know its no longer fashionable to tell new members to go and do a search, but in this case, considering the size of the can of worms you are opening some one might be forgiven, up the top right in the search area put in chill v nochill - that got me 89 results as topics or threads, without trying variations on the spelling of nochill, no-chill, no chill and adding ing's on the end.
1/ every fresh wort pack sold is made this way, and lots of them get sold
2/ lots of people here do it without problems (including me)
3/ just because some American thinks it doesn't mean its right or applies everywhere
4/ have a look in the wiki topics (4th one down)
Ahb Wiki: The No-chiller Method / Using A Cube
5/ plan on having a very late night
Mark