2. He claimed to be a P.Eng, without being one.
This undermines the profession, at loss to the public. I can go around, giving unsolicited medical advice all I want. I can't go around, giving unsolicited medical advice, while claiming to be a MD - and for good reason.
[Citation needed]
He claimed to be an engineer. The ruling preserved license requirements to claim yourself a "professional engineer" and "registered professional engineer" [0].
[0] https://www.theregister.co.uk/2019/01/02/oregon_engineer_lic...
It's not an unreasonable position.
Perhaps a person who is trained as an electrical engineer and who has a history of employment as a researcher and developer of audio electronics (in Oregon) should not think of or refer to themselves as an 'engineer' unless they are licensed in the jurisdiction they happen to be in, but this is a problem with a simple fix, and it is a problem unique to Oregon.
It does? I've seen really good engineering done by people who don't even have degrees in engineering (or degrees at all, for that matter). Contrariwise, utter disasters by people who were supposed to be incredibly professional.
For the most part, being a PE is about liability, and the technical stuff is there for show. It has nothing to do with "undermining the profession", it's all about who can sue whom when something falls over.