I'd stick to the spec and the conventions around them, if for the only reason that many tools have default assumptions based around these specs and once you sta

I'd stick to the spec and the conventions around them, if for the only reason that many tools have default assumptions based around these specs and once you start to veer away, you're coding around your tools instead of with them. i.e. use POST to create new things and PUT and/or PATCH to change existing things.