I agree share icons (at least for off site sharing) shouldn't really exist at all in web pages, although I think it would be a good idea for browsers to have a

I agree share icons (at least for off site sharing) shouldn't really exist at all in web pages, although I think it would be a good idea for browsers to have a share function integrated so that you could add a new share option similar to how new search options can be easily added with one click. At least one of the many benefits of the blocking I use is no share icons.