In that linked gamma discussion, the guy suggests adjusting for gamma=1.8 and says supporting stuff that will get you in trouble. Stuff such as:

"A gamma of 1.8 agrees fairly well with the output of most printers. "

Wrong. All printers today, especially photo printers, expect photos/images in sRGB color space, which is much closer to gamma=2.2 than 1.8. The only reason there are printers at all in 1.8 is because graphics work used to be the realm of Mac users and Mac used to be 1.8. Hello - that hasn't been the case for 10 years now - the Internet has changed all that. Mac is now 2.2, and far more people LOOK at images on 2.2 than 1.8. Far more. Like a factor of 10,000 to 1.

"It gives Mac users one less excuse to sneer, and they do enough unwarranted sneering as it is. "

Old news - Mac is now 2.2.

 

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)