No other information is given, YET. Confirmed by Pyscheout via Twitter.
What are the common causes of Banning? - Playing on more than one account in a 24 hour period. - Creating a bot or, in some way automate playing the game. - Creating a bot or, in some way automate purchases from the marketplace.
Banned account restrictions: - Cannot claim existing SLP. - Cannot receive new SLP to their inventory. - Banned Axies cannot be used in-game or sold on the marketplace. The devs are serious about following the TOS.
Read more of the existing rules: https://axieinfinity.com/terms/