It's very much a tragedy of the commons scenario, though: if one person emails a random within the company, they're going to stand out, maybe even get put in as

It's very much a tragedy of the commons scenario, though: if one person emails a random within the company, they're going to stand out, maybe even get put in as a blind referral. If everybody starts doing this, then it's just spam, and the emails are more likely to get dropped on the floor.