Some people incorporate antipatterns into their practice & reinforce these antipatterns with years of experience. All fields have this issue. Bad professional scientists are often worse than effective amateur scientists. Having good first principles with little experience often beats plenty of experience with bad first principles.

I have learned to appreciate codebases which break some rules & yet are easier to maintain for some reason(s) Distilling the reason(s) identifies areas where I can modify my technique...or at least help identify questions & alternatives to some techniques that I regularly use.