That feature is what I was talking about. However, alternates seem to be more-or-less commonplace for usual ligatures or, lately, for gimmicks like symbols in ‘

That feature is what I was talking about. However, alternates seem to be more-or-less commonplace for usual ligatures or, lately, for gimmicks like symbols in ‘programming fonts’—but pretty rarely employed for variety and randomness. Whenever I see a ‘handwritten’ font, I spot identical characters even in short runs of text. As far as I (vaguely) know, alternates aren't intended to produce true randomness. So instead I would throw in sheer quantity of alternate glyphs, to put identical ones further apart and shuffle other ones more. With the method from the posted article, producing the characters doesn't seem to take much effort. And the characters there aren't joined, so no need for traditional ligatures. Lastly, with a large number of alternates, kerning would add a lot of work—but then again, you don't really kern when writing with a pen, do you?