While I agree with the goal of OHM to be ubiquitous throughout DeFi and about using third party lending market as a pilot and testbed, I still think that over the long term, OlympusDAO should build its own CDP lending market.
Because it minted OHM and thus credit making I believe it is important that this OHM creation is handled by smart contracts owned by OlympusDAO and not dependent on third-party protocols. Having an OlympusDAO-owned CDP would also start updating OlympusDAO toward a fully-fledged decentralized sovereign worldwide bank.
I do not think that having its own lending market (as a CDP) would only appeal to hardcore OHM fans if presented correctly.
I am also strongly in favor of using third-party lending market but I would do with normal OHM tokens (meaning already backed, not minted) like any other token on those markets.
Again to summarize I support this as a testbed but I believe once data are gathered, OlympusDAO should work toward its own CDP solution. This would turn it into something unique in DeFi, the first unpegged decentralized stablecoin with backing that can be borrowed.