As many people know, keeping track of Receipts, paper or email, is not always the simplest task for warranty claims. Especially when purchasing products from third parties, if when registering the product to your account, you were able to upload a small image of the proof of purchase, which Wyze could validate as needed, it would make any warranty claims/issues much simpler for both parties.
This could be complicated by the manufacturer not printing a serial number or MAC address on the receipt, but I think that could be overcome fairly easily, receipt and photo of back of camera submitted at same time, date/time of images must be within a certain amount of time or something.