NO alt interaction falls under the causing drama part. Don't argue with yourself in chat, don't PvP yourself, don't send yourself pets, don't rez yourself.
Players that are found to have referred their own alts will be punished by having their mains locked. This is cheating. Danilo is generous enough to reward you with donation points for bringing in NEW players. Don't turn around and disrespect him by taking advantage of his generosity.
Clarification on alts and changes to the rule.
You many only have up to 4 accounts per IP, so if there are 4 different people on your computer playing, you cannot have an alternative character. If you exceed the 4 account limit, the HIGHEST account(s) will be locked. So if there is 6 accounts, the two highest will be locked and you will no longer be able to use those accounts. THIS INCLUDES ANY ACCOUNTS ON YOUR IP THAT MIGHT NOT EVEN BE YOURS THAT PUT YOU OVER 4! So be warned, your account could be lost if you let someone with 4 accounts already on it.
Also, you may only have alternative characters if you plan to play them, alts created just to start drama and issues with other people in chat WILL be locked(this means ALL level/VE alts).
Just because this is not located under the rules in the FAQ yet, does not mean it is not a rule. This change to the rule was approved by Danilo and WILL be added once he gets to it. If you have had accounts locked because you neglected to read this in the first place, that is your own fault for not reading the blog. The owl the system sends out when there is a new blog post tells you:
Please note that blog entries contain important information about Hogwarts Live. This information is not limited to the following: game updates, rule changes, warnings, and notices about downtime and bugs. If you fail to read a blog post outlining a new rule you will not be shown mercy when you break it.