My early mentor was this dude named Douglas Crockford. He had this tool named JSLint and it yelled at you, sometimes rudely.

In those days, about 12-14 years ago, Crockford was easily approachable online when you needed extra guidance or clarity beyond what JSLint provided. Then he could yell at you directly in public.

This shaped how I interpreted programming when I first started learning programming. I became focus on defensive coding styles that would perform well with extreme durability in the days when cross browser coding was far more fragile.