I remember all those XP haters from 2K users here in AT OS forum years ago when XP was released,we have come full circle,probably same sort thing will happen again down the road,unfortunately its only a matter of time.
I don't know, Win7 seems to be very very well received.
My takes on the Windows OS'es over time (initial and retrospective)
Win95 : Initially super impressed, but unhappy with the final direction (IE 4 w/Active Desktop really was an unstable experience, lol)
Win98 : Initially very happy, seemed to only improve with time (98 SE kept me happy for a long time, much more stable than trying to run a fully patched Win95 with USB support/etc).
WinME : Initially somewhat confused, not really any new features that seemed worthwhile, and I had some stability issues with it on the systems I tried it with.
Win2K : Pretty awesome, though some games were a bit tricky to get working properly. Still, far easier to make work as a gaming/home OS than NT4 ever was (SP6 ... shudder).
WinXP : Initially I was taken aback by the default visuals, but after running it for a couple of months it gained my respect, as once you had 512MB it ran really good. If you had a typical system of the era with only 256mb though, Win2K performed much much much better.
Vista : Initially I was excited, we were going to get the first refresh in a long long long time, but after going through the betas from when it was still Longhorn, I started to get worried. The RTM just drove me crazy. It would work great on one box, then inexplicably run like smashed ass on another similar or even more high-end box, with absolutely zero changes to either system's configuration other than installing updates and the latest drivers for video/chipset. Lots of drivers not available. Lots of business apps that wouldn't run correctly, like common versions of ACT!, Peachtree, etc, etc. Most of this wasn't Microsoft's fault, but they could have done a better job at at least getting a convincing compatibility mode for older apps. They should have also brought the hammer down on jerkoff OEM's selling Windows Vista Basic and Windows Vista 'Ready' systems with 512mb of memory AND some of that ram shared for onboard video. The most egregious example I saw was a Compaq notebook that used 128mb of ram for the video, Windows took foreeeeeeeever to boot and then promptly sat there like a melting ice sculpture. Again, not totally Microsoft's fault, but ram was cheap and a limit of 1GB should have been set in stone.
Win7 : Initially a bit worried after various mishaps related to Vista, but particularly after getting the RTM I've been very very very impressed. Smooth, and it's predictable in performance. I can look at a PC's specs, and like the old days, can tell with confidence how it's going to run, whereas Vista was anybody's guess system to system. Also doesn't frag the crap out of your HDD for the indexing. Nice.
So yeah, I'm sort of a Vista 'hater', but the only other Windows OS I've disliked was ME. 95, 98, 2K, XP, and Win7 have all been great for their era IMHO.