Duckduckgo has a shopping tab too (although, it's not as functional and comprehensive as googles, in my experience). If there's adoption of the schemas, I'd guess all the shopling crawler sites will use the data.

If you expect to show up generally favorably in a shopping comparison, having shipping data available would seem to be useful, since people may not want to purchase without an idea of when they'd get the items.

Of course, if you don't get purchases through those channels now, adding shipping data probably won't help.

> who is going to use that other than google?

Uh... the human on the other end that Google is relaying the information to...

I don't think anyone would disagree with the statement "if you rely on Google to obtain all your users, you need to do everything you can to help Google"

However, we're in a comment thread that went

> > Schema doesn't seem to have any benefit to anyone but Google.

> I fail to see how small businesses are prevented from using metadata.

The only use case I can think of for small businesses is scraping your rivals and seeing what they're getting up to.