...(...apparently requires Universal Access)...
I don't think
Never use font sizes smaller than requires Universal Access (in fact I don't even know what that would mean, since Universal Access isn't a tool which is toggled on and off, but instead a
collection of such tools); rather, it
provides Universal Access, as do the tools managed via the Universal Access prefpane.
It would certainly be less confusing were Apple to have used the term Accessibility instead in the Safari pref.
