Earlier quoted context omitted.
Really I think it translates to any company the size of Google or Facebook. It would be impossible for them to have the same level of face to face service that a ma and pa shop with a userbase of 100 people provides. You might not like it, but if 500 million people had an easy way to lodge complaints for whatever they wished, their helpdesk/support staff would probably be larger than their engineering team .
This is exactly it. Facebook is 2000 people serving 600 million. They all work 10-12 hour days and still can't keep up with all the work thrown their way. Its not that they don't care, they are just swamped.
And it's not clear they realistically could be staffed to handle it well. Though Amazon seems to do a better job than the others. So arguably you can provide better service if you're willing to invest in it. But for Facebook and Google, beyond some VERY base level, better customer service is a cost that probably wouldn't drive much in the way of revenue.