Quote Originally Posted by biondino
I would be genuinely grateful if someone could explain to me WHY it's considered by some to be bad etiquette to fight just as hard for the side pot as for the main.
It comes from tourney play where the sidepot is dry and someone is up for elimination. That's all. If there is a player short stacked who goes all in, and two players call - meaning there is no sidepot yet, just the main one - it's bad etiquette (and dumb play) to bluff on the flop and force someone out who might have made a better hand than the short stack. This logic doesn't apply to cash games, although it's still of questionable value to bluff into a dry sidepot when your hand is weak.