[raverbashing]

> Why would you even use US Intl keyboard

Because (for some reason) you don't have your "standard" keyboard - just the US ISO one

Some keyboards have an extra key (or maybe more than one) and hence can't be mapped fully with a US keyboard

[msm_]

I don't get it. In Poland we use exclusively US keyboard layout. To type Polish characters we have key combinations with AltGr (as TFA explained in a lot of detail).

[raverbashing]

Some people are more accustomed with composing letters + accents instead of using key combinations with AltGr

Coming from Windows this is very common

[edukite]

I'm using custom split keyboard with whatever I program to Blank key and still it never crossed my mind to put any Polish character as single key.

In Poland we informally use combinations and maybe some Poles use letter per key but I my entire live I never met a single person to do so