I had an opportunity to work with OSM data (nowhere close to something like FlightAware would need) at the beginning of the year and this comment put into words something I felt deeply at that time — "OSM is amazing, but as a global project with thousands of contributors, its data can be... quirky.". I have tons respect for this kind of stuff after working on that project and seeing the massive amount of time that gets invested to make things look correct for the use. It's the quintessential if nobody notices then you've done your job extremely well.