Not true! I respond to emails almost immediately, sent out an email two mondays ago, and have updated the GitHub repository every single day for the last 10 days. If you have beef with me, email me, but don't slander me. And, if you're unhappy, email me for a refund. Jeez.
BTW- I just checked my email to make sure I didn't miss something from you. I personally emailed you when you bought my book, thanking you. You never contacted me. Why would you air your dirty laundry here first?