[JepZ]

Well, I am not sure if I would call it arcane. There are only two things which I find a little non user friendly:

1. By default curl doesn't follow redirects and I think most use-cases (not all) require that behavior (at least from the cli).

2. Similar to wget, many users who start using curl do it to download something, probably a file. But opposite to wget curl doesn't write a file but to stdout. Actually, I find curls behavior much more UNIX style, but it is probably the first obstacle every user has to tackle. Nevertheless, in the end this makes curl easier to use, because you do not have to remember which parameter is used to set the output file name, but instead just use the universal unix operator '>'.