I can't stand websites that teach you to do something; cook, DIY, or a tutorial to experiment on something, and then leave you on the lurch after a few steps because they want you to register, pay or buy. These websites should be banned for life!
If anyone who is willing to teach, then teach all the way. Otherwise just tell the world that you teach only when you are paid! Gossakes! Some people think we have all the time in the world to want to be teased that way! But as far as I'm concerned I will make it a point to never visit sites like these again. Don't people realize times have changed?