As with all natural phenomenon, the "effect" is observed first, then a "cause" is attributed to it. News falls in the searching for a "cause" bucket.
You created a new thread with 5 pathetic words. Obviously, you are not a Subject Matter Expert. You have to do much more research. Then learn to write a few thousand words about lines, triangles, rectangles ... on the chart.
. wxy, glad you added this 2nd post to clarify & show the first one wasn't just a hit-and-run. My experience with moving averages is opposite yours... I improved my success rate when I began using two-colored medium-term (~ 40 - 70 period) moving averages, primarily EMAs. Their slopes determine the direction of the trades; they don't provide actual buy and sell signals, rather they simply make it more likely that my real buy and sell signals get me into the market in the direction of the current trend. Lots of backtesting and real world trading data have convinced me of their usefulness. In the charts below, my systems only permit buying when the MA is blue and only selling when the MA is red.
In a longish downtrend, MA's will work against you, they only sort of work in longish uptrends. On downtrends you'll get false signals and your exits (stops) will be much lower than entries. In an uptrend, even monkeys can make money, so MA's are an illusion they work correctly. Besides the fact they lag too much.
Some people just want you to do the hard work for them and they will use what you have put time and effort into. I do not think they will find many saps on ET. Other ET trolls will gladly mislead you and give you information.