My husband and I met online. He had no idea who I was when he sent me that first email and certainly didn’t know I was checking that email for spelling and grammar. If there were mistakes, the email went into the trash.
On the other hand, I later found out he spent hours (with a break for dinner in between) constructing that email and reading over it again and again to make sure it was perfect. He passed that initial test, and continued to do so with each email that followed.
Now, his goal is to catch me with a spelling or grammar error.