[poutrathor]

I see some. Top of my head :

Games development are limitless in scope and technical complexity and very passion driven. So, a developer could spend countless hours each night improving his game.

Next day, all the team has is a tired developer, drinking coffee and unable to code straight or analyse issues without missing subtleties.

Opening a wordpress for your mom and her gardening hobby is a significantly less time consuming task.

[cjrp]

If they're trying to avoid people coming to work tired, presumably they also have a no-children policy for their staff?

[testvox]

I'm sure they would if it wasn't against the law.

[tinalumfoil]

That generally wouldn't be legal.

[manojlds]

In the early days of Amazon, Bezos rejected bus passes for employees stating bus passes encourage people to leave work to a a timetable and he would prefer them to be at office and leave only when they can.