My two cents worth...
I am English, but having been here for five years I feel as much a part of Singapore as I do England. I mix well with locals (anyone who has met me at one of Bob's shoots will hopefully agree - back me up on this SF!) and understand and use some Singlish.
However, I was reading an article in Grain magazine about Clubsnap and it's future as a leading international photography forum. Well, if that is to be the case then the hokkien/singlish posts will have to stop as I sometimes have no clue what people are talking about. I don't even know what Bokeh means and this is used a lot!! This will seriously put off users from US/UK/Europe etc...
I guess it depends on how people see Clubsnap. If they are happy to keep it as the Singapore forum then continue back if you want to aim higher, I'm afraid some of the confusing posts might have to go and a change of attitude will be enforced on some users...