You've made your point, you've vented plenty, now sit back and wait till things get back in order. Obviously there is something going on but I'm sure you can spend your valuable time much better on getting things sorted within your hosting business rather than venting here.
I agree, there is no excuse for the (huge) delay in support and the annoying and critical bugs in 5.1.2, though I believe that it should come from both ways. Testing, backing up, and again testing before upgrading. There are obvious problems in the management of the software and the support desk but posting like crazy here and 'attacking' other members is not going to solve that.