Thoughts for Thawte's Personal Certificates?

ShadowMaster asks: "Does anyone know (or had experience with) dealing with Thawte personal certificates. They are offered for free by Thawte, but I cannot find any reviews or consumer feedback on the matter. They ask for some interesting private information (SSN, DOB, etc.) so I was just curious if anyone has had any problems with the service, or if they are truly on the level." As most of you are aware, you have to be very careful what information you leave online these days. Does Thawte do their part in keeping what information you do give them out of third party hands?