[kijin]

There are different kinds of users. No need to call something silly and irrelevant just because it doesn't fit your preferences and priorities.

For example, one of the first things I check when trying out a new Linux distro is whether I can tweak the font rendering exactly the way I like. If this takes more than a few minutes, or if Firefox and LibreOffice don't pick up my tweaks consistently, that distro is out. I don't care what other awesome features it has. If I'm going to be looking at it for 10 hours a day, it had better not hurt my eyes. I would never sacrifice visual comfort just to get something that's supposedly "more functional". But that's just me. Other people will have other priorities.

[iamcreasy]

How do you tweak the font of the entire environment?

[kijin]

In most desktop environments, you can change the system font, font size, subpixel rendering options, etc. in the "Settings" (or equivalent) menu.