The amount of articles is irrelevant to ranking. For example check 'buy Viagra online' and you'll see a bunch of 1 page sites ranking with hacked links.
But - my sites have ~4-6 pages. I've tried just about every strategy with gsa / sape / network, even without gsa at all. The results are pretty much the same.
That's bullshit. Warm, smelly, steamy bullshit.
The amount of articles is >>>
relevant<<< to ranking. It may not be a primary factor but it absolutely something that Google considers. And apparently, you don't know how to do basic research. Because I checked your example "buy Viagra online" and:
#1 is Canada Drugs which has
403,000 pages of content.
#2 is Corey Nahman which has
304 pages of content.
So many marketers think Google doesn't favor big sites and that's bullshit because most marketers are too lazy to produce content. Sure, you might be able to find thin sites ranking in competitive niches, but generally speaking, the high majority of the time that is
not what I see. What I do see more often that not is huge sites in the top 3.
I have also split tested this enough times to see for myself. My biggest sites never have problems cracking the top 3. They rank like mini-tanks. It's always my thin sites that get stuck on the top of page 2 and caught in this "filter" which is really just Google saying "I ain't ranking your shitty 4 pages wp site".
If you don't believe me, go run a few dozen split tests.
For every niche you target to 1 thin site, then 1 site that is beefed up with hundreds of pages of spun content.
I GUARANTEE you will notice that the big sites consistently outperform the thin sites.