Well, I might as well make a public statement.
I think the problem is that we have different philosophies on how to handle cheating. You want to stop the cheats while I want to stop the cheaters. The end goal is the same (fair play), but it's difficult to say which philosophy is better.
Say we both have a cheat detection system that detects cheats A, B, and C.
Scenario 1 (current cheat detection):
Player decides he's going to cheat, tries cheat A. He plays with it for a bit, then gets banned. Maybe he comes back after he's banned and tries cheat B, but the ban times keep getting longer with each offense.
Scenario 2 (your cheat detection):
Player decides he's going to cheat, tries cheat A. It doesn't work.
What now? Maybe he gives up. More likely, he won't after just one try, so he moves on to cheat B. Still doesn't work. Cheat C? Nope. Maybe that's enough to completely deter some people, but what about the people who keep searching around and finally come across cheat D? That one isn't detected. Now he can freely cheat because the cheat detection does not stop him. Worse yet, what about the people who have some programming knowledge and decide that since they can't find a cheat, they'll make their own and find a way to circumvent your cheat detection in a way you didn't expect?
I hope you're not naive enough to think that you can write a cheat detection system that will completely block every cheat in existence, because I can tell you right now, that won't happen.
You gave the example of speed cheats. Yes, you completely block some methods of speed cheating, such as what's used on what you were testing on your private server (yes, that was detected), but that doesn't get all of them. If you just want to auto-boot speed cheaters, there's already a setting (sv_enforcetime) for that, which is a server-side method of checking for time discrepancies between the client and server. This can detect ANY method of speed cheat, but tends to have some false positives due to lag, dropped packets, etc, so I have it disabled by default.