I don't think requiring a doctor's note is necessarily bullshit. Special chairs are more expensive so it's a shallow cut to prevent everyone wanting one just because it's available. If they are more comfortable and the two people sitting next to you have one, wouldn't you want one too? Now obviously there is potential for fraud and so there is some bs as the author notes. But let's not throw the baby out with the bathwater I can see a reason the company would have this process.