Yes, that's why I titled my earler post "Caveat lector" - for "let the reader beware!"

So I agree that the entire site can't be dismissed as bad - but also, we shouldn't just blindly recommend it to all & sundry and say, "dive in; grab all you can eat!"

In fact, the ertire internet should be read with the words caveat lector clearly stuck to the screen at all times!.
The thing is, the internet is (almost) entirely unregulated and unmoderated; it has (virtually) no quality control: just about anybody can post just about anything - with no vetting as to whether it's legal, useful, true, safe, or anything!

Of course, there is plenty of excellent stuff on the internet, but also a whole load of drivel - it is up to the reader to distinguish between the two! (eg, by following follow-up links - as Charles noted).

One more time:
caveat lector