I have ever read a thread in my language sub forum, it say that have multiple account i allowed but make spam will make you are banned.
It would be best if you spent more time in that subforum as your posts in English are incomprehensible.
I heard a story from my friend that most of the people here have 3 up to multiple account here in bitcoin talk and selling it for a specific amount when it reaches Jr or member rank. Is it allowed to have multiple accounts here using the same IP address? Will there be a chance of getting ban when you are navigating multiple accounts?
Some have more than 20. I heard stories that half of them belong to Theymos, who is actively involved in account trading.
If you want to know more about account trading ask Quickseller. I heard stories that the majority of posts including the word "lauda" came from him.