How do you handle these customers who at first purchase your app, then.... resell it? I think the legal action alone is quite cumbersome, but anything we can do at least how to defend againts that?
Let's take an example with 37Signal's ONCE product. They allow their customers to get access to the code, yet personally I don't see how they will do if one of the customers decide to just resell the code they just purchase...
Are there any solution to this? Will be appreciated if we can discuss things other than to just "be silenced"/keep doing your things/your competion will not last that long/etc...
Also you could mention that people buying from the genuine site get product updates etc. Both on your site and in the product.
That's for legitimate platforms and processors of course. If it's on some darknet bulletin board - tough luck. Not worth the time.
The thief won't care if you tell them to stop. But their domain registrar, web host, video host, social media accounts, and payment processor will care about copyright infringement.