@GFXlabs below replies from the Zora team:
How does Zora onboard new users?
First time creators can sign-up to Zora with just their email address. No prior knowledge of self custody wallets is required. First time creators can post on Zora for free using gasless creation.
When collectors mint a first time users’ first post, the new user will receive .000333 ETH in protocol rewards, effectively onboarding them to ETH with an image.
Does everyone have to bridge from another EVM chain?
Today, first time collectors do have to bridge from another EVM to get ETH onto Zora Network.
Do any centralized exchanges support Zora ETH or USDC?
Not yet, but we are actively working on native deposit and withdrawal support for CEXs.