Hi Kaivax, thank you for listening again to the (RP) community
While I feel a bit better to play with our english speaking friends (thanks to Gatorin and Vallinator), i know a bunch of people who don`t and would not tranfer to an english realm.
I know, “language barrier” sounds dumb in 2022.
But please keep in mind, that the German Reunification was around 1990. That`s not THAT long ago.
A lot of my family members who are older then me NEVER learned english at school.
They learned french.
Even when i was a child, my cousins around my age first learned french, later english (Saarland… small area next to France).
Some of my german RP friends i have met, were born in Russia controlled parts of germany - and learned russian, not english.
Some later learned english, because they wanted to be able to read or listen to movies in english, but many did not and never needed english in their lives.
To roleplay needs a higher level of language skills ( i do not have 
)
I do not expect many german speaking RP players to move to Hydraxian Waterlords, due to this language barrier and the fear to be completely lost, not able to communicate with the other players and so on :-/
Edit: i exactly feel the same on Firemaw. I try to avoid all interactions with other players, because i probably wouldn`t understand there slang and abbreviations. 
I am only there because of a friend… and i learned english at school