Charles is right; it is based on mutual understanding and a high level of activity. The India board communicates in English, and I've discussed with them once or twice; they also have a sub-board for people who prefer to converse in Hindi. When we get local board we go still get Pidgin sub-board too.
This talk make sense to me! I been don dey see that thing but I been get different assumption about the whole thing, I never know English is permitted in a local board but sub forum fitbe do local language e make sense, so for here now every body fit use whichever language so far say the next person fit understand you. Thank you again.