Guy with legacy system (Single core CPU, 512MB DDR RAM, AGP DirectX 9 card) uses PC to play DirectX 9 (and older) games, use the Internet, code, write docs, compose music and draw/edit images.
I know we're all enthusiasts here, but that isn't what I would call a legacy system.
I don't even consider my Pentium III (socket 370), 512MB (SDRAM), and 4xAGP/8xAGP (GeForce 4 MX440/Ti4200 respectively interchangeably) Dell Dimension 4100 quite as a legacy system, although, maybe it could be one. It runs Windows XP just fine. No, it doesn't play any games within the last few years, encode movies, or even play HD YouTube videos, but it runs just fine.
The definition of legacy is loose (often used interchangeably with obsolete or outdated), but I'd say legacy stuff is stuff you won't find too much anymore, or stuff that's seriously pushing along only by using horribly outdated software itself. Pentium IIIs and Pentium 4s/early Athlons are not exactly legacy, and don't have to do that. Just because it's single core, AGP, and DDR(1) doesn't mean it's legacy. It's in our (enthusiasts and the modern aftermarket's) past, yes, but it's easy for us to be that far ahead to think they are, but, they're not. Most PCs stay in play for ~5 years, and after that, most even find new life with less demanding owners, children, etc., so I'd say anything within 10 years isn't "legacy". That's just my definition though.
As for the matter at hand, OS wars by fanboys are fun to watch. Use what you want and shut up. What does it really matter what someone else is using? It's preference. End of. I guess some people just get a rise out of belittling something they know is still a valid option (it's proven by the fact that they give it quite the attention), which is pathetic really.
For reference, I have pretty much completely stopped using my Windows XP partition. Within the last four months, I've booted into it maybe 5 times, and only for a total of maybe an hour or two total over those few months. I'll still use Windows XP on my older system rather than the OEM Windows 2000 disc it came with that I was going to at some point (it'll be upgraded from Windows 98SE), but besides a few personal quirks (no Windows XP look, and yes, I do want it), I'm really liking Windows 7 better in almost every way, and will use that on my main PC now. I've never
really tried Windows Vista out for myself, but I have no reason to now. It's, honestly, just as much of old news as Windows XP is going to be (this is just my opinion).
In XP if you rename a file automatically the entire thing including extension is highlighted for removal and renaming, in Vista and I am sure 7 as well only the name part is selected and the extension is left unselected.
Ughm, no? I've never had Windows XP include the extension when I go to rename it, unless the extension was already shown (which should only happen if either it's an unknown extension, or you have it set to always show it). Maybe I'm misinterpreting what you're saying, because not even Windows 95, Windows 98, Windows 2000, etc. did that.