Spanish vs. Spaniard

The Internet, all of it, is plagued with self-appointed teachers of languages: some good, some bad, and some completely out of it. But we have no way of knowing who is going to lead us well and who is going to misguide us. I cannot judge, I can only say that simply being a native speaker is not enough.
Today I have read in Instragram that the word "Spaniard" is "old fashioned." Not so.
--"Spanish" is an adjective which refers to the people of Spain, to their country and language. As a noun it refers to the Spanish people collectively: "the Spanish came to America." It also refers to a language: "He speaks Spanish well."
--"Spaniard" is a noun and refers to a native or inhabitant of Spain. It is the only noun to refer to a person born in the Kingdom of Spain.
--Years ago Spanish-speaking people in the US referred to themselves as Spanish, whether they were from Bolivia, Honduras, Puerto Rico or Mexico. To make the distinction I had to say I was a "Spaniard" which cleared things up.