Tommy,

I see your point. You can specify an OpsMgr agent as a proxy for one or more network devices, but agents do not act as proxies for other agents - that's called a gateway as you well know. I suspect the author maybe just skipped the proofreading phase when writing this article.

I honestly just didn't take it that serious as it looks like recycled information he grabbed from somewhere else. Besides that he did around 150 blog posts where 3 were about SCOM.

However, what he said there doesn't make any sense to me and I don't really know what he meant there. Agents doing some broadcasts... for what?
Didn't Simon look for an Interview Candidate? :D

Anyway, I think I know from where he ripped it off:
"The Discovery Wizard can find and set up systems for agentless management. The process is almost the same as for deploying. You do, however, have to select a proxy for each agentless-managed system. A proxy is a system with an agent that is used to monitor an agentless system. A management group can serve as a proxy, but this takes up system resources. A best practice is using an agent-managed system as a proxy."

However, I don't like that guy's blog. He writes like he had all these great ideas and now he shares his knowledge with you but it's basically just a summary of some documentation he read. Who else would say something like:
"I always recommend advanced discovery."

What's funny though is, check his comments:
"Rahul sorry I'm not SCCM certified. I don't like posting in area's I'm unsure about"

Maybe I should stop posting here until I am SCOM certified as well.