@play_bach if you aren't worried about negative seo you could always expose your site here and we can have a bash at it for you? Just to see if it works.
@play_back, PM me one of your domain names and I'll try out this crazy conspiracy theory that links can hurt your site. You can watch me waste money on blasting your site with thousands of cheap links that do no harm to your site whatsoever, proving you right. Right? The most telling thing would be not to take me (or anyone else) up on this offer - in that case, what are you worried about?