I think that after chinese pushed the market last week, it's not the turn of western exchange, probably for the "same" reason (not a devaluation though, but weaknesse of the $)
Let me see if I get this: Chinese purportedly bought BTC due to yuan getting devalued rel. USD ($ too damn strong!)
now the westerners are gonna buy BTC because $ too damn weak?
You must'a been to some expensive universities....
CNY is being devalued on purpose, the Chinese government wants the yuan to be weak because it makes exports more attractive (china relies heavily on exports to make money). Good sold in CNY to countries who use stronger currencies will be cheaper, and therefore more people will import Chinese products, instead of products from for example eastern Europe.
Of course, rich Chinese aren't happy with a weakening CNY because their money will evaporate. They want to spend more (especially if they want to import luxurious goods, which will become more expensive as yuan devalues).
The dollar can still be weak compared to other currencies though, such as euro and swiss frank.
If you're going to ridicule someone for being stupid, at least make sure you know what you're talking about.