I'm sorry, did your argument for removing Win98 support just boil down to you accusing us of being tight-fisted idiots?
Have you not read the rest of the thread?
Even your second argument doesn't apply; Both my old 6600GT and my X850Pro, both of which support Win98, are more than capable of running FS2 SCP with everything on (Well, the X850 doesn't support normal maps, which sucks, so I'm sorely tempted to go back to the GT, which is supposed to be an older slower card!

Darn you ATI!!)
Now stop throwing out fallacious arguments (I especially liked the DOS-based Windows dig, and grouping Win 1.0 with Win9x! How very cunning of you!).
There is currently NO technical argument why FS2 SCP will not run in Win98 - It is just as capable of running it a a modern system.
The ONLY good reasons to drop support given so far have been due to insurmountable compiler problems and difficulty in testing.
OpenGL is not an issue as the library is totally dependant on the graphics card drivers, and using any new API's would still need to have a fallbacks anyway since not everybody has a GTX295 or HD5970

Obviously there is no support for DirectX 9 in Win98, but since FS2SCP doesn't use D3D or DirectSound, and DirectInput has basically not changed (In fact they've removed bits of it and DirectSound in DX10!), that is really a non-issue.
Now, as I said, this is really up to the devs and if they feel the compiler and testing problems are painful enough that they really can't get around them then fair enough. (It's not like they get paid to do this after all!). That's fine, I can understand that, but I don't want support being dropped for stupid non-reasons like "FS2 can't possibly run well on a Win98-spec machine" or "All Win98 users are idiots or poor people!"

.