Continuing the discussion from Message limit for moderators:
I believe, but can’t promise, that the limit is PER IP. The ban is set on an IP, I’ve had a bot malfunction and it was IP banned for 2 hours but I could use the account from home. (The bot ran on a server on another IP)
Attempting to “bypass” these limits will probably result in in a permanent ban on your name/email/IP. They are in place for a reason.