I agree with Lord of Doom, here.
I think the priority would be to make the site attractive for first time visitors. And I think English is the most sensible choice for that, since, for people who don't speak English, it's easy to find and click on the appropriate flag on the main page.
I understand the argument of the majority here, but favoring one language will also favor the growth of the Belgian community towards that same language.
I don't know of any major, country-wide Belgian Website that has a default language set to either language. Most will have a welcome page with the choice of language (including English) before you access the main site.
The thing with non-English speaking countries, I think, is that people are not discouraged by opening a website in English, since the internet is global, and if they don't speak it, they'll look for a language flag. If they come across a website in a language other than English, they assume that the website is not, globally popular, but rather popular only in the area where the language is spoken.
I admit that if stumble upon a website in Turkish, for example, I just close and try to find an English alternative on google.
If BB's default language was English, at least in Belgium, I think more first time visitors would realize it is a big, global thing, and there would be more people actually registering, in my opinion.
edit: oh, and the Belgian forums are still called BB-België and Non-BB België.
Last edited by Thelonious at 10/30/2010 6:35:59 PM
"Air is beautiful, yet you cannot see it. It's soft, yet you cannot touch it. Air is a little like my brain." - Jean-Claude Van Damme