My approach to trading is to keep an open mind and allocate to what works. If someone shows me they can make consistent risk-adjusted profits from watching the cycle of the moon, I'm in. I don't really care where they get their edge. Bashing other's techniques, that work for them, is not productive or helpful to others that are trying to learn. I say learn a little of everything and apply what works for you. For me it was delta neutral volatility market making. When the edge was gone for locals, I left. 25 years was a good run. They edge was gone by 2010, maybe as earlier as 2005, but during the financial crisis, we did not require locates, which was a big edge with financials.
Even though my focus was on option pricing, I did watch charts all day and follow the news and financials of the symbols I made markets in.