[Forge36]

Enough to give pause. In StarCraft there was a trap set and a fan favorite was about to walk right into it. The audience went wild. And then he stopped all units, and retreated. When interviewed he said he'd stopped because the audience went wild when they shouldn't have. (They cleared the stadium for the next match)

Baseball isn't a game of hidden knowledge. The audience mood can give away details about the other team.

Think poker. If another player bluffed and the audience gasps, you know something notable happened.

[Forge36]

I did some more digging and found this post

https://tl.net/forum/brood-war/40832-starcraft-audience#12