There's different levels of support/resistance and most money is made from determining positions based on how assets act around support/resistance. I agree with buying a minor support level after a topping formation would not be profitable. Based on the limited timeframe shown I certainly wouldn't want to buy that "support". How about an asset class that has had significant stops go off for days and has created multiple inefficient gaps and is now headed toward exhaustion right at major support. This is one of the best opportunities. So I think it's a bit more complicated than support/resistance not working.
