Increase fuel economy -> Introduce fuel economy standards -> Economic cars practically phased out in favour of guzzling "trucks" that are exempt from fuel economy standards -> Worse fuel economy.
or
Protect the children -> Criminalize activites that might in any way cause an increase in risk to children -> Best to just keep them indoors playing with electronic gadgets -> Increased rates of obesity/depression etc -> Children worse off.
As the article itself says: Hold big tech accountable -> Introduce rules so hard to comply with that only big tech will be able to comply -> Big tech goes on, but indie tech forced offline.
Too many cobras > bounty for slain cobras > people start breeding them for the bounty > law is revoked > people release their cobras > even more cobras around
I think most of the examples fit this, but a few don't.