“it is true that these terms are public domain”
Huh? That is just nonsense. This isn’t about the poker terms for pete’s sake. LOL.
The page in question uses definitions of the terms. That is in no way public domain. The idea is ridiculous. It’s like suggesting some poker rules I might write are public domain, or a biography of a person.
So can we stop with this silliness about the terms please.
Now if we can focus on what is really the point, the point is not to illegally copy stuff from other sites without their permission, especially if you are going to have an affiliate deal with them.