Bug reports aren't so high-stakes (although poorly written bug reports can often be useless). I've got something to sell, and I want this expert to confirm that what I've built is better than what's currently available. That's a much harder approach. You want people to send bug reports. You don't want everybody to try to sell something to you. But I really think that I've solved the problem that she identified, so I want her to take a look at it instead of dismissing it as most people would probably do when a random nobody claims to have solved something. It doesn't help that this entire issue is way out of my comfort zone.