Can’t monetize free users? Try threatening them with legal action
I don't think this is totally unreasonable. From their point of view, they offered a perfectly reasonable alternative to paying, which was ignored.By ignoring (accidentally) the original email, the message sent back could be interpreted as: "We're not implementing your link back, and we're not paying for your service, but we're still going to use it anyway".I'm playing devils advocate here, but there are two ways to look at this.