I'm thankful for the support I've had from customers and on Pinside over the years! Many of the projects would not have happened if it wasn't for interaction and customer feedback here on Pinside or through emails. I hit plenty of hurdles on some projects and having people to cheer on the project helped keep the motivation up and often helped the product become better through getting feedback/ideas before it was finalized.
Also very thankful when people send emails or PMs out of the blue to say how much they enjoyed a product once it was available -- that definitely means more than you can realize to the people creating things for this hobby!