"We're excited by, and awed at the responsibility we have caring for our over 100,000 new customers..."
I need to get my head wrapped around this. This implies that Mt. Gox may have over a quarter of million unique customers, 100K of which (all unique) are US and Canadians. This blows my mind.
It truly reads 100K new customers and not 100K new accounts, for there is a big difference between the two statements. Remember the email dump? That consists of over 60K accounts, many, many, many of which were multiply accounts by the same users.
If memory serves me correctly, MtGox ToS limits you to one personal and one business account per customer without prior approval. I suspect that there are a lot of inactive accounts in among that 100,000. I suspect that many people ignore that provision, too.
The email dump was a long time ago. I have no problem imagining that the number of MtGox accounts has increased dramatically since then.