One advantage of GET is I can just copy the URL and share it. The article makes no mention of that. While I love the proposal (apart from the name, I can see the SEARCH verb being used for something that's not search), they should also address the URL share-ablity aspect. Something like " rel="nofollow">https://google.com/search where query can be arbitrarily large (>2000 URL length restriction) and the browser is sm…
Related, I wish there was a more standard way to include things like verb and headers in a URI. I hacked an implementation that parses /something#a:b&c:d to set the headers a and c, I was thinking for verb I could do https+get.
A separate format to serialize a request spec is a good idea, sure, but it is a distinctly different thing than the URI of the resource referenced by the request.