3box: It is up to you if you want to connect your profile with 3box. Your profile photo will appear under your markets you publish on Mintbase.
Stores: Your stores will appear here. You can check out the ERC-721 functions, who bought the tokens (holders) and other public data about your smart contract has.
Stripe in Beta: We are currently testing our fiat integration. If you are interested in selling your products/services in USD or EUR, please reach out to us as we slowly roll out this integration.