I found a snippet somewhere that messes with string interning and so symbols don't instantly get capitalized, but there's still way too much shouting.
(Tangentially: I've encountered Common Lisp libraries in that wild that actually break if you do this, highly surprising bugs where the author was doing something too-clever with symbols and compared their representation against hard-coded strings, such that changing your *IDE's default print case* had the effect of breaking a very low-level library. This isn't important to anyone else here; I just wanted to vent. I have so much programming pain that only I know about and no one else in the world shares).
Ah, used string= instead of string-equal, did they? Simple mistake to make, not keeping CL being case-insensitive in mind.