I don't think we disagree. Cherrypicking a quote out of context is a bit unfair.
gpilling* had made a promo-type post, which added nothing to the discussion. I think these should be disallowed.
I made the point at least twice that reference-type links to deeper resources should be allowed. The sole consideration should be whether the onsite post is of sufficient value, and the link sufficiently on-topic. Then we have symbiosis.
However, parasitism is a form of symbiosys, whereby one entity benefits at the expense of another. Thus, efforts should be made to ensure post quality does not drop due to frequent off-site referencing when in-thread explanation would suffice, or be preferable
* @gpilling - I apologise for keep beating on your post. I appreciate it was sincere, and I intended only to highlight it as an example of non-essential linking that I believe would poison WebmasterWorld in the longer term.