As a trader, you don’t have the luxury of being biased.

You trade trends and structures. When the trend changes, structure shifts; you adapt.
So if you see someone bullish one day and bearish the next, judge them by their charts, not by what they said the previous day.
Because this trader will make more money than the ones who were “right” yesterday. He can adapt. He respects the market.
On the contrary, be aware of people who are perma bulls or perma bears posting the same higher timeframe charts with random indicators just to support their bias. They'll eventually be right but they won't help you make money.