I think, regardless of whether GUILE_AUTO_COMPILE works correctly or not (and public variables should all be documented, so if %load-should-autocompile isn't, I'd call that its own bug), I agree with the substance of the complaint. The autocompilation messages aren't warnings and shouldn't be sent to the warning port. Maybe they should be sent to a logging port instead.
- bug#32580: Setting variables %load-should-autocompile and... seamus phenetols
- bug#32580: Setting variables %load-should-autocompil... Maxim Cournoyer
- bug#32580: Setting variables %load-should-autoco... seamus phenetols
- bug#32580: Setting variables %load-should-au... Maxim Cournoyer
- bug#32580: Setting variables %load-shoul... Maxim Cournoyer
- bug#32580: Setting variables %load-should-autocompil... Daniel Llorens
- bug#32580: Setting variables %load-should-autocompil... Taylan Kammer