Guides posted to TankSpot need to be viewable on TankSpot. Threads that do nothing but link to an external site are essentially just spam and will be removed.
Note that it's still okay to link to another site, there just needs to be some value to the original post. Readers need to be able to get something of value out of the post on TankSpot without clicking through to the other site. For example, posting a video and saying "a full writeup is available on my site" is okay. Just posting a link is not.
This should have been explained to the user who was posting them in a PM. I apologize if it wasn't explained clearly.