It seems that this PR: https://github.com/maticnetwork/bor/pull/446/files#diff-330686dc447b6523e8cbb02ae01e63ed53f3b214274ecc0da55c978965dda5dd broke the --verbosity flag by shifting everything by 1. The result is that by default the level 3 is actually WARNING, whereas it should (and be the default) be the INFO level.