[Zababa]

To quote the tutorial you linked:

> The syntax for labels and optional arguments is confusing, and you may often wonder when to use ~foo, when to use ?foo and when to use plain foo. It's something of a black art which takes practice to get right.

So I don't think it's just you.

[johnisgood]

Labels and labeled optional arguments, they were pretty straightforward to me when I was a newbie. I came from C. OCaml was the type of language in which I just wrote something and it worked on the first, or at worst on the second try without even having to look up the syntax. I would never be able to read Haskell, for what it is worth, even though in OCaml I mix imperative, functional, and OO; I use whichever makes the most sense. In a project I typically use all three.