Hey there. We just wanted to chime in that you can avoid the account closure by logging into your account within the 30 days (since receiving the email pictured) and selecting the Cancel Account Closure link contained in the email. We certainly do not want you to lose access to your games or account so if you have any difficulties logging in then please create a support case with us. >> ubisoft.com/help
If a game you own on steam also requires you to sign into an Ubi account it might? Maybe you'd need to create a new Ubisoft account again? Idk im just guessing a possible answer to that. It's a good question.
Ubisoft might tell you that the game is already registered and won't let you register it again, even with a new Ubi account. I would assume the scenario where the customer gets screwed is the default.