Earlier quoted context omitted.
Can we block sharing email addresses by default? It seems every time I sign in with Google the site / app starts SPAMming me without my consent. It's pretty much why I don't use it: The SPAM.
My gmail is quite old and well used, and it gets relatively little spam. I go through and aggressively unsubscribe link everything I don't want to see, and it surprisingly works. I get more spam on my @myname.tld address than my gmail even and I keep that one quieter. Almost every site actually does unsubscribe, and those that don't get marked as junk.
It gets some typical low effort spam that the spam filters easily screen out, other than that it's pretty quite.