Min-raising late in MTT's
Straytfrush brought this up on another thread just recently, but thought I might post the question here. We were railing for skllzdatkills just now (who took 3rd for almost $20k, woot) and were noticing that the standard raise was a min-raise, and it was usually taking down pots, even when a bigger stack was in the BB. At the level we were watching the BB was getting 4:1 odds
to call, which in theory justifies calling with any two cards. This is not specific to this tourney, I'm sure you all have seen it elsewhere, particularly late in MTT's.
So what's the theory here in min-raising? Or perhaps the question is what's the theory in folding to a min-raise when you're in the BB? Is it just about chip preservation? You don't want to put your stack at risk when you hit middle pair or TPNK with your marginal hand? Seems like there wasn't a lot of desire to play post flop. I don't pretend to play at any stakes above about $2, but seems like as a big stack I might be tempted to abuse middle stacks min-raising me by 3-betting pf and/or playing aggressively post flop. Unless they hit the nuts they don't want to donk off a bunch of their chips or bust out with shorter stacks hanging around.
Anyone care to comment on the theory here?