I’ve always pictured some sort of entity that would sell new peershares instances as a service, where they would produce and host new peershares networks for companies and then when/if the company becomes more successful they could detach from the hosting entity. The starup would be paying for this service, maintenance and what not, as long as they itself could not afford to do the work themselves (probably they would be focusing on their business instead).
A starup could even be residing on PeerAssets, then migrate to a hosted Peershares network and as a final step, detach from that. The more money the company would be worth, the more they could afford to spend on improving the security model and migrate to even more decentralized and self-securing network. This strategy would protect against “financial attacks”.
Since blockchains are pretty horrible, I also always thought that there would be things such as Peerkeep or somethings similar to SPV wallets, that the company can offer their clients/share holders.