Got it Jill! You are just right!
No, it's not a problem, which is why I didn't delete them.
It's just that there are hundreds of thousands of SEO resources out there that are not very good, in my opinion. Which is the a big reason why we have this forum, and why I have my newsletter.
The resources you posted might be very good, and I'm sure if you posted them you feel that they are. Unfortuantely, I don't have the time to check out every resource that is posted, so I like to warn people to be careful.
If one of our moderators says something about SEO, you can generally believe it is good advice. That's why they've been chosen to be moderators here. Any outside resource needs to be carefully evaluated, and some research done on the authors to ensure that they actually know what they're talking about. Most likely they do, but as I said, there's much more bad SEO advice out there than good. And I've read lots of it. There are very few things that I read that I agree with 100% for whatever reason. Doesn't mean I'm right and they're wrong, but it just means you have to take everything you read with a grain of salt unless you know and trust the person who wrote it.
Well I will stay tuned here on accessibility and usability issues where I have most knowledge and experience.