First of all is very hard to make Google ban you... probably will get you in sandbox
Sandbox means that you will lose your ranking and you will get low at the end like page 20-30. But this is not a ban G use sandbox as a maturation tool. With the right action you can get back again, and is not so difficult. But since this is not the case I will stop here with that.
The idea is to make things look natural. Think if you would like a website how you will post it's links on the web? When you got the answer multiply this by 1000/10k ..etc and this is it.
One way to make things look natural is anchor diversity, and here is some nice info about this:
http://www.blackhatworld.com/blackh...chor-text-variation-question.html#post4249440
http://www.scrapestuff.com/scapebox-...t-post-penguin
Another important thing is to maintain your campaign constantly.
Let's take you looking at 2 websites that look the same....
And you see this 2 situation:
website 1 backlinks: week1 = 100k new links/ week2 = 0 new backlinks/ week3 = 10k new backlinks / week4 = 100k new backlinks == TOTAL : 210k links
website 2 backlinks: week1 = 52k new links/ week2 = 52 new backlinks/ week3 = 53k new backlinks / week4 = 53k new backlinks == TOTAL : 210k links
So... witch of this website seems to you that use back hat techniques? From my point of view the answer is website 1 but in reality both use blackhat seo but the second one make things look natural. It make things look like as it is a great site and a
constant and rising number of people find this website interesting every week and post links to it on the web.
Of course this is an extreme example but that is the idea.
Thank you.