I am assuming that your rant is about the 21 day hold on your money by paypal?

It has been happening for long enough that if it was not legal someone would have started legal action by now. 

There are ways to work around it if you have a look on the boards.....there have been numerous threads about it since it started.

However, if your customers are paying by paypal for Pick Up items then you have a problem in that you cannot prove to paypal's satisfaction that you have posted the item.  Unless the buyer leaves feedback you will probably have to wait the 21 days before your money is released.

If you are allowing paypal for Pick Up items you have no paypal seller protection....and neither does the buyer.

Ask for cash on pickup....tell your buyers that they have no paypal buyer protection when they pick up the items and they will probably be happy to pay cash when they have inspected the goods.