Just to clarify, these are blogposts (I thought I was pretty clear before?). Blogposts don't stay perpetually on the homepage, and they do roll off. They have been rolling off pretty quickly due to the large number of orders these couple of days.
However, the indexing rate of the posts still remains at 80%-90% within 24 hours and honestly that's what counts. Indexed links from diverse root domains and unique IPs.
I maintain this network aggressively because I use it for my own sites as well. Having posts that "stay on the homepage" together with 100 other posts (with a total of 300 OBL - 3 per post or more), don't you think that looks kind of suspicious to Google?
The network is set up this way (with a limited number of posts on the homepage) to look as natural as possible with as little footprint as possible, to ensure that your posts remain indexed as long as possible.
Hope that clarifies things.
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Bump [4/4] as per forum bump rules - GMT+8 Timezone 25 Nov 2011.