I'm wondering how effective it would be. The reason we give links to your first tier sites is to make them stronger and give some link juice. But if you give 5000 links from pr 0 pages to your fist tier site (also pr0) it still remains page rank 0, from my experience. Does it(give 5000 links for example = blasting) still give value to the site?
Also to get 5000 links all of a sudden would be suspicious to Google's eyes. Even though it is not the money site, doesn't Google devalue the site as a backlink source and possibly penalize the site linked from it (main site)?
But since a lot of people seem to be doing it, has it been effective?
What's your thoughts on it?