No, don't enable revocation checking
I'm honestly kind of surprised how little action there has been to assist with a migration away from the CA model. The technology is there, but people just don't seem interested enough to leverage it.Systems like Namecoin could serve this purpose marvelously. Powerful devices have direct access to the entire cryptographically authenticated DNS and certificate database. Weak devices can specify whom they trust to provide them with DNS/certificate data, and even those devices get some cryptographic security guarantees thanks to technologies like SPV.