Note: This list is incomplete. It'll be expanded as time goes on. Feel free to comment below with a link to your Curse profile to help me expand the list.
So apparently Curse has this ridiculous term on their TOS (archived at the time of making this gist):
In order to access some features of the Websites, you will have to create an account. You must be at least 18 years of age to register an account. Minor children may only access account-related features using a parent or guardian’s account so long as the