Yes, this is why today I was unable to get your codes for your Animation app and later for card shop. You gratiously PM'ed me one later for the Animation one. It's because of lurkers. They are not members of TA, and they just take codes without so much as a thank you and will not leave feedback or anything in return! Think of them as leeches. It's a major problem here on TA for us members who are appreciative for your codes and give a proper thank you and leave feedback in return! You posted the codes for Card Shop and five minutes later they were gone, leaving us to go through them all only to find out there were none to be had! It sucks! The best way to avoid this IMO is to request us to ask for PM'S. That way, you have a better chance of getting valuable feedback you need and that is not to let just anyone to be able to access them.
