If you are one of the traders who do day trade, I think you are suitable for this question. Because, as day trader for them they can do the actual trading in any exchange platform. they don't care whether it is bearish or bullish season, it is due to that they knew to themselves whatever happens they could get profit 100%
I agree with that, day trader can use the same market situation into his advantage, however this type of trading is riskier, so not recommended for newbie traders. IMO, trading in bullish times is better as the likelihood of losing is very low, price is usually moving up and more money are coming in the market, and that will help us to easily trade and make money by making decisions at the right timing, price will dip (we buy), and price will pump (we sold), just follow that strategy all the time, you can accumulate good profit in trading.