Heya Brokenz,
I'm not any of the guys whose comments you decided to go after, but in their defense...
The first guy just criticized the forums and this discussion in general as being full of measurebating and not so much about photography. To a point I agree. I think there is a certain amount of said "measurebating" that is useful to people, and then there is the unnecessary comparison of things like image quality between 18-200 and 18-70 or 17-55 and 28-70. There's just so much to cameras and lenses that gets sucked up by quality control tolerance that such close comparisons are practically invalid. 50mm f1.4 and 50mm f1.8 prime sharpness comparison is another one. It's usually with regard to sharpness, which is why I'm not a huge fan of sharpness comparisons unless the differences are night and day.
Those who agreed weren't necessarily stating that discrediting KR's opinion was being overly analytical and a "measurebator", just that this forum is full of them and it is IS an opinion of KR's that I also happen to agree with.
I've commented a number of times that lenses like the 18-200 will prove themselves with real photographs when the opportunities to take them arise. The endless comparisons to other lenses is tiring and silly to me, but it's a new lens and the buyers are insecure and need SOMETHING to be certain their lens will serve them well. Quite honestly, when I picked up my 180mm F/2.8D and my 45mm F/2.8P, there were very few good quality images that I felt reflected the potential of the lenses so I did comparison tests because I didn't have great opportunities to take nice "real" photos. Quite honestly, most of the photos that get posted in these forums and on PBase from those lenses are mediocre and don't tell me anything about what the lens should be capable of. I tend to find better samples on Xitek forums (Chinese) or sometimes on PhotoSIG.
But because of those tests I took and the few real world samples giving me suspicions, my 180mm is now at Nikon. Some of this measurebation isn't all bad...but I do agree that forums like this one tend to take it to useless extremes.
You've seen photos that I've posted so I don't think I need to post more to try to validate my opinion. I'm not a great photographer but I at least go out there and try to get stuff from time to time. And while I do comparisons and look at lots of test photos that would never be framed or printed, I agree with them that the forums have taken measurebation to an almost unhealthy extreme.