IP banning on maple, due to Password changing.

So here's the breakdown.

You may log into 9 accounts, the 10th one will ip ban you.
The first mandatory pw change requires no info except account name & pw.
Any account that tried to log in and generated an ip ban or tried to log in after ip ban was placed will be required to have a password change and verification from e-mail to re-activate account.
If your ISP supplies a dynamic IP you can reset your modem and hope for another one (I don't know what the limit is, but surley nexon ip ban file will be 5 gig in a few months.)
It seems you may log into the same account multiple times without difficulty.
It only counts the accoutns you log in, if you leave an account log in then it's not counted unless you relog.

Here's my questions:
Is the login limited by day, week, month, ever?
How long is nexon gonna track thise IPs?

Insucerities:
When manadatory pw change occures anyone with old pw can change it.
If someone finds out your pw they can fource you to have an e-mail verification and if you don't have the e-mail, you'll loose access to the account.

I think this thread is gonna be as long or longer than the hacking thread was.