Unless you've changed the URL, neither Rust nor any other mark appears to be in either the domain name or a subdomain. The term "rust" appears in the path, but that has never been an issue.

I have my reservations about these plans, but a lot of the reaction from online commentators feels like the "MongoDB is web scale" of legal advice - poorly understood regurgitation of very complex issues by people who are simply not experts in the field.

This is true, I am not an expert in this field, and have no legal training. I don't claim to be an expert. This is just me, giving me opinion in a blog post.

It's not my intention to sound rude, but I'm pretty sure that understanding the difference between a website's domain and a post URL does not require any legal training.