The reading material is "unwelcoming" to discourage coming into it with any preconceptions. If you go into it trying to make it do $x, you'll have a bad time an

The reading material is "unwelcoming" to discourage coming into it with any preconceptions. If you go into it trying to make it do $x, you'll have a bad time and send lots of annoying emails to the maintainers. If you come into it wanting to learn about it and derive an $x from your experience, you'll have a better time.