It's strange to have some moral objection to advertising because advertising is, ultimately, a form of discovery, a way of connecting people who want or need something with those that supply it. Ad revenue on the Internet, almost by definition, means someone found something they wanted. How exactly is it bad to connect people with things they want and need? The problem with advertising is when it gets too obtrusive,…
Then this: "How exactly is it bad to connect people with things they want and need?"
And this: "How anyone can have a moral objection to that baffles me."
This is misleading. There may be people who object to advertising in principle, but even if you don't, if you are seriously trying to think about "moral objections", you need to at least consider what is being advertised and how it is being advertised. Instead, your comment is an example of how advertising advertises itself.
Edit: clarified for coherence