[Cor]

This has been known about for a long time; ugly sells.

People are more likely to trust something that looks amateur since it feels more like a recommendation than an advert.

Mr.Green, a well renowned CPA Marketer/Blogger, wrote a brilliant article about this. You can find it here - http://www.mrgreen.am/affiliate-marketing/the-ugly-truth/

[benpof]

Also, http://www.mrgreen.am/plenty-of-fish-ads/what-works-on-plent...

Some good lessons to be learned from that post.