I hate this phrase.
Leaded gasoline worked, but it was so stupid it actively made people stupid.
Storing passwords plaintext works, but the first time your system gets broken into it's a massive problem.
Driving at 80 mph in a rainstorm is stupid and it works until it rather spectacularly doesn't.
https://tvtropes.org/pmwiki/pmwiki.php/Quotes/SchlockMercena...
Yeah and airborn nickel causes cystic fibrosis with the highest concentrations found in the home in built up areas, blown in like dust, and inhaled Methylcyclopentadienyl manganese tricarbonyl causes but doesnt cause Parkinsons.
Surprising what the scientists can find but wont put their names to it.
Door motion detector broken? a human hitting a manual door open button when they see people is "stupid but it works".
Need to build a bridge but don't have an engineer? Piling rubble in the water until you get a path across is "stupid but it works".