Does he know what a steal reraise is ?

[Bonified]

Here's a tournament situation I was in tonight. Pokerstars, but I'm deliberately not stating the buyin because that's really the meat of the question.

Blinds 25/50, hero with about 2K finds 99 in the cut-off and makes it 150. Villain in the BB, who has us covered, reraises to 500. Now, in the 50 rebuy or any other decent tournament where there's a lot of restealing going on, this is an obvious shove IMO. But what if it's a smaller tournament, or a tournament with satellite entrants, and the villain has say an average buy-in of $50 and an ROI of -20% on OPR ? So he's not a complete donk but still isn't very good and isn't likely to be very imaginative.

Can anyone justify any other action than shoving all-in ?