Just doing a Manual link check on google and there was a link from webmasterworld to the domain listed in my profile. Just another reason to list your URL in profile as googlebot can and does index dynamic pages.
A couple weeks ago I was looking at some of the links from profiles and discovered a couple of adult links. Searching deeper, I found those profile pages in two search engines. It was clear that people had signed up just to generate a profile and submit it to search engines. My full seo red alert alarms went off. So, I've placed NO INDEX tags on the profiles. I didn't wanna, but had to.