[ajryan]

I wonder how much energy we waste on pedantry.

[TeMPOraL]

Probably not as much as we waste on resolving confusion caused by playing fast and loose with shared rules/understanding of things.

[npteljes]

Sometimes it has its place. Can you imagine a public speaker making errors like this? I think it detracts from the message. Public, and especially popularly read stuff should be as correct as humanely possible. Good grammar is a habit, improved by repeat exposure.