[jkxyz]

It seems pretty common to just type the extra letters in Romanian as their most visually similar Latin character. I've never seen anyone writing Romanian with digraphs when they're sending text messages, for example. "Bună dimineața" just becomes "buna dimineata". As someone learning Romanian, it makes it a challenge - I still learn the word and its pronunciation. Conversely, in German, digraphs seem to be commonly used and understood.

[oblio]

Sh and tz are used, but considered "uncool". For ă, â, î everyone just uses a and i. We're just less orderly than the Germans :p