One way Private Messages?
 

One of the members sent me a Private Message in response a question I posted on the Diesel Discussion. It was helpful advice. When I replied to his Private Message, saying "thank you" I got an Error message stating the recipient has chosen not to receive Private Messages. What gives? I did not initiate the correspondence. How is it you may send a private message yet the recipient is denied the courtesy of a reply? Doesn't sound right. Thanks.

My guess is that the person who sent you the message switched on the ability to send PMs and then switched it back off. You can do this by clicking on User CP and finding that functionality in there somewhere <= opposite side from Log Out