[phillmv]

a) You are not a company. The incentives and the amount of relative power each entity has in this relationship is skewed.

A job to you is life changing. To a large enough company, you're just a conversion or churn metric.

b) That happens all the time. For instance, in order to get an H1B, a company has to document that they can't fill a given position in the local market. Which you accomplish by putting out hyper specific job ads.

If you want to be nice about it, don't pull that game on small startups but that's about it.