People hate Browns because ideally they think Browns would be the best all around switch, there's feedback without being clicky, and light enough to actuate.
However what you end up getting, is a switch that has very poor tactility so tactile users don't like it, but clearly not linear either. It feels like something is stuck in a MX Red. In the world of made up statistics today, I postulate that 80% of the people who use Browns, are actually looking for Clears. "But Clears are heavier". Sure, but really only at bottom out. It's marginally heavier at actuation, but the tactility is incredibly improved.
For unlubricated switches, the best all around tactile switch is about a 68g ergo-Clear. For linear switches, probably a ghost Black. For clicky, white lightning (MX White with spring from MX blue).