I have argued this on a thread before and not quite long, but maybe I am wrong. If you are not betting on sport like football, do not bother to choose either yes or no.
Since I have been betting, I have not thought of this before. Is the referee the reason you bet on yellow or red cards?
Yes, it makes sense that there are referees who are more inclined to give out cards during a match. But I don't think you should base your choice only on the referee. You also need to look at which teams are playing. If the teams often receive more cards than average, and they are being officiated by a referee, who tends to show a lot of cards, then yes you can consider such a bet. But I believe the bookmaker will also lower the odds or increase the total number of cards for such matches, so it is not that simple.