Don't Get Sued! This Hidden Policy In Your Interface Design Could Cost You Big!
User interfaces can be protected by design or utility patents: You wont get sued, its not worth it for them and they most likely wont win either way unless you were a large company or something with clear monetisation. As for the email, just discard it. No need to reply at all, absolutely nothing will happen regardless if you reply or not. Unlike good user interface (ui) design, these deceptive practices benefit the business at the expense of the users choice and can take various forms, including misleading copy, hidden costs, and confusing layouts, among others.
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