The maniac who wins a huge pot and then immediately goes quiet is about to tighten up. He got what he came for. Don't keep adjusting to him like he's still running hot - he's shifting gears.

Why they do it

Some maniacs have a satisfaction threshold. Once they stack someone or hit a big pot they unconsciously switch into protection mode. The aggression drops, the 3-bets stop, and suddenly he's just a regular player. If you keep playing him like a maniac you'll get burned by a value hand.

The adjustment

Notice the shift. Give his bets more credit after a big win. He's not bluffing at the same frequency anymore.

What it's worth

Calling down a maniac who just quietly shifted gears with a bluff-catcher and running into top set is a brutal spot. Pay attention to the table energy. It changes.