Proofreading has been outsourced to schmucks like us who care enough to do it for free. Much as it grinds my gears, with the 24/7 news cycle of today taking the time to proofread every article is probably just too much time and effort for an organisation that provides its news free to its readers.
I think we should have a national pedant day though, at least one day a year where people are not just encouraged but obliged to rag on every little spelling mistake*. Then we could have a carnival in the evening where someone who habitually writes 'loose' when they mean 'lose' is picked at random an shot as an example to the others.
* I am aware that this complaint about spelling will have several spelling mistakes
** That doesn't have to happen, but it would be nice