Even the "personal" outreaches, such as market research to poll you as a subject matter expert, no mention of your employer... might actually be to try to milk you for information about your employer.
It could be on behalf of competitors of the company, and it could also be on behalf of prospective investors in the company.
Just say no to anyone offering to pay you for a call like that.
However, they can be even more evil, and harder to weed out: rather than some market research pretext, they can pretend to approach you as a recruiter.
The range of practices I’ve seen go from just come up to the booth to get some trinket to put in your email address to get something a bit more valuable to listen to our 5m spiel and you can pull something out of a claw machine.
Is there a line there that you personally wouldn’t cross? A line that’s prohibited by your company policy? A line that you believe makes a company unethical and should be prohibited? Curious where everyone falls on this.
At a recent AWS Summit, I picked up a pair of socks from a company with a name that was homonym of an acquaintance's, and a rubber sumo from Sumo Logic. Both got my email address. These strike me as being under the threshold of concern.
And then they went bankrupt. I can't help guessing that was related to their largesse.
no conflict of interest to connect them
criss cross