When is a blog "full"?

Lets say you're building your own network of blogs.
You don't want to over-spam it.

Is there ever a time when the blog is full or can you just keep adding more and more articles with backlinks?

Or is it just enough that you keep OBL rate on each unique URL at some normal level and leave it at that?

First off I want you to know that I am not saying this as a smart ass but I want to walk you through this so you realize the answer to your own question.

What is the point of a auto network blog? To create backlinks for you money site right? Well if you can create as many articles as possible and keep building them automatically why would you want to stop at any point?

What you want to control is the amount of OBL, where they are pointed, how they are pointed (follow, nofollow), and the quality of the articles on the site. Why would you want to stop this? You are thinking as if the blog is a glass and you are trying to stop it from overflowing and the internet simply doesn't work that way. It is a long chain that overlaps with other chains (linking) and the more links you get the better.

Make sense?

A blog is never "full". You can add an indefinite number of posts.

If there is a limit, the purpose of blog is over. Its a never ending diary.