Viners - Hidden Profiles?

Hi all!

I went to look at a product review I wrote, and noticed the other reviewers. That was the first time I saw that, so I thought I would also look at what other reviews wrote, lol, in other words what other items they received ;-)

Anyway, the couple of people I clicked on all had hidden profiles where you could not read their reviews. For those of you who do this, why?