I totally understand your point, many people do not read before posting. However, I have been following BladeRunner's work for quite some time now. If you've followed it as closely as I have, you'll notice a couple of things:
1. His early blocks had many more flat surfaces than this last one.
2. His surface finish seems to have improved over his early blocks.
The polishing method described in your link only works well for flat surfaces. Although possible for curved surfaces, it becomes exponentially more difficult with tight spaces. If you look closely at this latest block, it appears that even the brass hose barb is polished, and even polished well on the inside. I have made many, many waterblocks, and have never seen brass barbs available for purchase that are internally and externally polished. It also appears that the barb may have been polished after being inserted into the block, as I see no telltale signs of wrench-tightening.
Although it is still possible to polish this latest block using the same method, I'm just wondering if BladeRunner still does it all manually, as by my estimation there is well over 5 hours of polishing by hand to reach that lustre. I'd like to hear his answer, please.