will be "hotseat" accounts for a lot of the games etc, meaning that unless someone wants to own their account, they can be light - or earned to own over time.

Exactly. Like one NFT public wallet that transacts all "trades" for games. So people can sign in with Email, play and never know it use blockchain.

They can cash out on multiply chains at the same time, like a cash-in.

The best from every place creates real market depth.

IMO the cannibalization is a bit special on hive. For the onboarding cost reason.

Think about it, classic forums or Facebook groups that could convert all users to web3 without any "enormous" cost.

They decentralize the userbase ( could be the same interface as a Facebook group, not that hard to copy).

But it bust be dirt cheap.

Then users spend $ in the ecosystem.

cannibalization will happen, but fresh $$$ always come in and circulate.

Also fresh users are the same as attractive than already userbase.