What could possibly go wrong?

from here

Even after changing direction they still don't seem to be thinking about spam. If someone can send harassing content then they can also send any other kind of unwanted content. In fact the attempt to connect itself may be unwanted. I can't tell you how many times I've seen emails from people at other businesses wanting to connect for business purposes. In theory this is what Slack was trying to facilitate but it would still be unwanted commercial messaging from my perspective. I don't want to connect with them, I'm not the right person at my company to reach out to, and frankly I doubt my company is interested in fielding invitations from every Tom, Dick, and Harry organization out there.

Don't call us, we'll call you.