DHB sometimes sometimes had nice nuggets of info and insights, but mostly it was frustrated ranting.
The only unsatisfying regret that I have is that the anonymity was never lifted, and we got to know where his baseless rants stemmed from.
I always thought he was a C++ programmer in a company that had both Delphi and C++ programmers or so, with them constantly at turfwars with each other, but also helping out when needed. (hence the familiarity with Delphi) The theory was that some of the arguments of the other (delphi, not his) that held some traction with him were the inspiration for the better posts and insider info,
Or similarly, a C++ programmer that had to work for a considerable time on a Delphi product or so.
He seemed to need the blog to vent daily frustration more than to inform, which is why I think he was confronted with some C++ vs Delphi turfwar on a daily basis.