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in no logical way does it improve Vs hand over ours.
You are correct (though overstating) that it turns few hands into ones that beat ours, but it turns a lot of hands into ones we can get more value from. That is why we b/f, to get more value from Vs' large calling range. If their raising range crushes us, though, we should then fold. Readless multi-way, their raising range crushes us here, IMO.
And yes, V's will call flop with gutshots in games like this all day long, especially if a chain of callers give them what they think are good pot odds.