Does anyone have insider knowledge of why PayPal has been causing merchants so much trouble? It sure looks bad on the outside, but I'd be interested to hear their rationale.
The result is that the system is treating them identically to how a bank would treat a more organized company; however, with an accountant on hand and an understanding of the rules, the organized company is much less likely to make silly mistakes (such as selling people a product that is shipped more than 48 hours later, already in violation of VISA's rules, to a third-party's address and then claiming that it is a "donation" and not a "purchase" There are also simply more players, as we are now talking about a bunch of couple-person companies that are using PayPal to accept credit cards, and even individuals who may not be incorporated at all but are using it to launch and sell products on their websites. These kinds of people are also much more likely to decide to attempt "lynch-mob" as their primary means of recourse against a company doing something they disliked, so we are doubly more likely to hear about situations.
However, as a merchant who operates something that many people (incorrectly) call sketchy, and one who has spent much too long learning all of the relevant tax regulations, reading up on credit cards, talking to people with real merchant accounts, and having meetings with banks about possibly using their service instead, my opinion is: PayPal is not that difficult to talk to and they are not actually unreasonable; there are things they are incompetent at, but this isn't one of them.