Forum Moderators: buckworks
Personally I don't think it's helped my business, it's just caused my webhost (who's very security-conscious) a world of trouble fixing things that aren't really problems. They once forced him to tighten things up so much that they couldn't scan the site at all. When that happened they prevented the HackerSafe button from showing for several days. My sales were very good- even a little better than ususal. I'm thinking of cancelling it.
I'm not sure where you are based, in the UK we have SafeBuy (http://www.safebuy.org.uk) and ISIS (www.imrg.org), there may be something similar where you are.
I ran my own test by the way, not the one they wanted to setup for me. I'm sure that theirs would have shown a difference ;)