[Tarks]

Can I call you someone that's invented a zero-sum scenario and is getting annoyed at their own misconception?

You contribute and therefore probably benefit OSM, you're using a google captcha enabled site so you're benefiting from something on that site, that site benefited from the captcha service because they didn't have to write one themselves so could spend their time improving the site you're benefiting from.

You're a link through which google captcha is benefiting OSM :)