Most of the scores I work on are guitar (multiple voices on a single
staff), and on nearly all of them I wind up with many "ignoring too many
clashing note columns" warnings in the console output, which makes it
harder to see errors that I *do* want to catch. At the moment I'm half
way through a score and have 18 of these warnings that I can't disable
with \override NoteColumn #'ignore-collision = ##t as as doing so
prevents being able to move a note column to avoid a collision of notes.
Most compilers I have used over the years have pragmas to allow the
suppression of specific warning messages. I think this would be useful
in Lilypond as well.