I hear you! Autocomplete would be nice, but sadly, it's really far outside of what this engine offers. To compensate, we tried to provide aliases for things that we thought would be misspelled. For example, we have this line in the source:
Understand "cofee", "coffe", "cafe", and "cofe" as coffee.
I'm glad you enjoyed it, though. I can't think of a higher complement than being anywhere in the same universe as Pratchett/Adams!