Dropped $300 on a bootcamp that taught me what YouTube could for free

Signed up for a 12 week JavaScript bootcamp last January. Paid $300 up front thinking it would be structured and professional. Turned out the instructor just read slides from a free online course and gave us basic exercises. I learned more in three days following a free YouTube playlist from a guy named Brad. Has anyone else gotten burned by one of these beginner coding programs?

Pro tip: found a game-changing chrome extension for catching typos in code

I spent three hours last Tuesday debugging a stupid variable name typo in my JavaScript project. This free extension called Code Spell Checker caught it in like 2 seconds after I installed it. It highlights misspelled words right in your editor, even for camelCase stuff. Has anyone else used a linter or spell checker that saved them from a headache like that?

Vent: Trying to verify a claim about Trump's rally crowd size took me 4 hours of digging through old county records

That time my AI training data glitched and cost me half a day's work

I was feeding my model a batch of labeled customer reviews from our database in Austin around 2 PM last Tuesday, and the script suddenly started mixing up positive and negative tags. Turns out there was a corrupted CSV row from a backup file I didn't catch. Has anyone else had training data issues that silently ruined their results, and how did you track down the source?