I tried for around 5 months sadly to no response! Highly frustrating, But I hope he is ok!
Yes, I do agree they should pull the products from the marketplace until we get signs of life! Many haven't been updated for 5 years - It could well lead to people getting (rightfully) annoyed that the marketplace is a shrine to a bunch of once great, Now dead Blesta Addons once they've already spent the money!