Of course I did. I DM'ed him on Twitter with no response. Then I commented under one of his tweets and he did respond. He mentioned it would be complete by Aug 2023 (this was before Aug 2023). Some time this year I commented under one of his linkedin posts asking for update - no response. There are multiple comments from other users on that web page I linked above - most of them had no replies.
Of course he's been busy. Everyone is busy. But charging $200 (or $100 with coupon) for a course which is delayed for more than 1.5 years and still has no sign of completion is another story.
Did you ask for a refund? If you were refused, you can proceed with a chargeback procedure with your bank.
Not yet. I'm willing to pay for stuff like this. I was reading Tim's Rust in Action at that time and I liked the book so when he announced that he was starting such a course I immediately singed up, although the price was a bit crazy. I got the coupon code from a guy on Reddit so that's pure luck. I am really willing to pay for other peoples IP. I am still hoping that one day he could complete the project but before that I've got some other projects to work on.
Side note: I've finished Build your own Redis in C/C++ (https://leanpub.com/build_your_own_redis) and it's pretty decent. The title of the book is a bit weird since it's almost 100% C++ so I don't know why they put "C" in there. But it's a pretty decent book (and reasonably priced).
Sorry for the huge delays and also for missing the LinkedIn message.
Your support for creators is very much appreciated. There is now light at the end of the tunnel. More info here. https://news.ycombinator.com/item?id=41907594
Ah, so you are the author of Rust in Action. Thanks for the great book! Despite not liking Rust, the book was really engaging and enjoyable.