I don't know, personally I have made the experience that the population which is not happy about a "hey" will likely be similarly unhappy about a message about

I don't know, personally I have made the experience that the population which is not happy about a "hey" will likely be similarly unhappy about a message about an avocado toast, at least if that's the very first message. If the message is a few hours/days after a "hey" that might in fact increase its chances, for a multitude of reasons. But still, "hey" would be the first message in that instance.