[Someone1234]

I haven't held a phone with one hand since 2011. I do mean that literally has I've owned a 5.1-5.2" phone since then. Therefore don't use my thumb to interact with it at all.

The whole "The 'ow' zone" section assumes small phones, small hands, and right handed users.

[cauterized]

Just because you don't doesn't mean that nobody does. Ever tried to use a phone two-handed while holding onto a subway pole? Or walking home with groceries? Or holding your kid's hand?

[Someone1234]

> Just because you don't doesn't mean that nobody does.

The article claims though that everyone does which is what I take issue with.

[cauterized]

> The reason behind this term is that in many cases Mobile Users hold their device with one hand, and perform actions using their thumbs.

Many, not all. It's enough of a problem for enough people that developers should pay attention to it.