welcome
please add the forum child boards language (Polish, German, Slovak, and so on), would be better to communicate with users
I don’t think that’s doable here as Avast doesn’t want external mods 
If so, then I guess it would be better to, at least, have a Translate This! button for quick access to Google Website Translator.
The moderators won’t be able to follow each language. The quality of the forum will degrade imho.
+1
If you want other language, you need mods for that language. Since alwil don’t wants external mods: no other language.
damage