That site is laughably out of date now.
I had no time to read it yet. But it was a side i did remember.
Out of date? Since a half year > 07/25/14
What are the opinions on non-arcade emulators and monitors?
Not that i really need them cause i have allot of the real consoles and C64 and A500, but i'm curious.
Are non-arcade emulators (consoles/computer) ok on a CRT monitor (FW900)?
I've run the following emulators on pretty much every display type you can imagine.
LCD TV via HDMI, CRT TV via component, svidio, composite, crt projection TV over the same as the CRT TV plus dvi.
LCD TV via svideo and VGA monitors.
I have had no issues I can think of other than NES and older systems really don't look great on a 50" Plasma TV regardless of what type of scaling the emulator offers & incorporating scanline shaders does make a visual difference.

I personally prefer an old CRT vga monitor with the curved screen and the res turned down to 640x480 or lower if possible for old school emulation.
I also have a 32" CRT TV with component in that looks amazing when that input is used but it's way easier to use Svideo & it looks almost as good to me.