I am 100% on board with the need to support great plugins. Your free form builder was amazing and I would have happily agreed to a paid version if you had demonstrated professionalism in the way you operate. How can you let people upgrade to the latest version of the plugin without letting them know that their hard work would be wiped out and that they should be ready to spend countless hours answering to customers complaints because their form suddenly doesn’t work anymore. On top of that, your 50% upgrade coupon takes one to a page where they can save 20%. Live and learn….