A lot of Common Lisp code that ends up opensourced is either 80% solutions for things that were necessary for some project (sometimes commercial), and IMO the rare cases where things really got polished - they got polished later on with intent to publish.

On the job code, whether lisp or not lisp... I'm more used to managers preventing writing anything more complete or documented, except for once in few months forcing everyone to write BS low-quality docs because "documentation" is a line item on the contract.

My pleas to set aside time to document and polish things are usually ignored, my pleas for a technical writer on staff to help us keep docs current and well written have never been listened to so far.