Profanity filter (RU chat on EN client)

Few questions (and, btw, this is not a buff!):
1) Why profanity filter affects only russian language? (from my expirience with EN and RU chat)
2) Why it is enabled by default on EN game client (EN chat & UI)?
3) According to p2, why there's no possibility to disable it right from EN client? I have to switch UI to RU, restart client, disable / enable filtering, switch UI language back, restart. QoL?

Hey?

C:\Users\####\Documents\My Games\Path of Exile\production_Config.ini

[GENERAL]
enable_profanity_filter=false

You don't even need to launch the client.

You're right, but this topic wasn't only about 'how i can disable it'.
Seems like GGG guys are fine with a such behaviour, so I'm out of here.