I'm in full agreement with your demonstration, however, as to the case at hand, it appears to me that it's not really the point : the fact is that it should not

I'm in full agreement with your demonstration, however, as to the case at hand, it appears to me that it's not really the point : the fact is that it should not be qualified as a "presale" and Paypal here is not a trade intermediary but a postman. If that's not the case, Paypal needs to explain how "crowdfunding", which depending on the viewpoint could be characterized either as a capital investment or as a donation and therefore in any case NOT a commercial transaction, intersects "presale" which definitely is a commercial transaction...