Goldensrule although I really love labs. I'm not "unhappy" about it, I just object to the concept, which means you will probably get your wish.
In a capitalist society, it's not rational for anyone to be insulted over an offer of money. If it isn't enough for you, just say "no thanks" and more along.
As for communications, bad manners is a hot button for me but, a bigger concern are the snowflake like sensibilities of the kinds of people who get insulted by an offer.
Report this person for that and the other person for this, seriously are we a capitalist society or not? Free trade means just that, not policed by anything but the law.