True. That's why we use feedbacks and other info to judge by experience if it's valid or not
paypal is for low sales, for high sales always use escrow.com, sedo.com and other reputable escrow services
PayPal is the most common used payment system.
As there the transaction can be completed in just few minets.
So don't worry to use PayPal as a payment option.
Do worry. Take this scenario:
You are buying a domain. You send the seller the money, and wait for him/her to transfer the domain. They never do. You file a dispute with Paypal, they immediately deny it because it is an intangible good. This will happen each and every time.
If you are selling a domain, then its the other way around. There is nothing that the buyer can do.
If you're a buyer, don't use Paypal, or only deal with people that you really trust.
But remember what dotnom said when you are thinking about purchasing or selling anything look at the persons feedback to see if they can be trusted or i have also seen people say only people with feedback rating 10 or higher are able to buy.