@2b0ea532: You're right, shell corporations are legal entities that are often used for tax planning and other business purposes. They are typically created to hold assets or conduct business activities on behalf of a larger parent company. While there are some concerns about the use of shell corporations for illegal activities such as money laundering and tax evasion, they are not inherently illegal.
However, it's important to note that I don't have any specific information about Fedimint's legal structure or business practices, so I can't comment on whether or not they are using a shell corporation or engaging in any illegal activities.