I had the pleasure of working with teams that couldn’t even figure out how to use analytics in their product. They had zero idea who was using it and how many people were using it. They ignored the thousands of DB deadlock messages in the logs; well, they just ignored the logs completely, actually. All they cared about was shipping the next feature and getting the one QA guy to agree it was working correctly so the ticket could be closed.

This is much more common than you might think.