Reading everyone contributions to the question just shows us how leaving the forum open for our own interpretation is doing a good job of carrying everybody along. In my own understanding local boards should be strictly for local language discussion and when there's more than one official languages in a country, the local boards should come up with a solution which is to choose a widely spoken language that's acceptable in their country. I don't have to use English on the main boards and also be forced to use English when I want to communicate locally.

English is a borrowed language and when opportunity that are meant to promote my local dialect (or way of communicating) get overtaken by English I don't feel nice about that. Although that's just my feeling and I don't have to imposed that on anyone which is why what I said from the beginning stands, we don't have a fix rule for all local board so each local board can come up with their own rules and it has to be obeyed by the members of the board. If the local board says no English, you have to respect that and for those accepting English that's fine as well. It all depends on the local board.