You're right Mavid. We are not sure who amongst the members has the multiple usernames. I remember a former member named Bridget and was banned. I don't know the reasons why she was banned hence the question. I have read some of her threads way back in 2007 ( i guess, i'm not so sure) and i find them informative.
If i'm not mistaken is she the member named Simplelife?. I had given her advices regarding a certain topic.