I think people are missing a fact here when it comes to writing knowledgebase posts on your blog/website/whmcs.
As a potential customer, I would love to have an answer to my question almost instantaneously. The problem that I have noticed is that the knowledgebase section is actually a little deeper inside WHMCS Client area. Besides you'll have to look into multiple sections at times to find the exact answer to your question. And then when you are satisfied with the answer, you have to go back to the Order Cart to order, or elsewhere to do what you had to do.
Same goes for the blog. I would not like to go to another subdomain/domain to find my answer and then get back to the main site.
Think of it the Steve Jobs way. The vision that he had for the iPod wheel. He wanted it to function in such a way that the consumer can get to his desired song in 3 clicks at most.
Similarly, I would not like to browse the site(s) to find my answer(s). And that's why more often than not, I'll look to talk it through with a Live Support assistant, or maybe file a ticket to get the most precise and latest answer.
So in my opinion, reduce the navigation time and write the answers yourself. It will be very effective for sure! 🙂