Law suits / claims, I'd expect, as tall is unstable.

If I sell a Monitor With Really Tall Monitor Stand and then you lightly bump your desk and break your monitor, you might want a replacement and call my stand "an unstable PoS".

If I sell you a Monitor and you stack books under it and your monitor falls... well... dummy, tall stuff falls over. Time to buy a new monitor.

Isn't the manufacturer to blame if I get neck problems then?