I think 'sold out' is a bit harsh. The site was made free of charge for anyone wanting to learn how to use PHP in small, easy to follow steps, with no charge, but a donation button for anyone feeling generous. Then it changed so that there were paid courses, some of which are like 13 hours long, so the donate button was removed and the paid courses were flushed in. I don't think $30 for a 13 hour course is selling out plus all the original free video's on the basics of getting started with php are still running totally free of charge