Propsper deleted my description as well (and I only had my prospers.org screen name listed-- no link). I e-mailed them to ask what was up, and this is the response I received:
Prosper recently removed the content from your member page. We recognize that you may have been prompted by an unauthorized third party site or by other Prosper members to do this. We are also aware that you may not have realized that represents a very real security risk and a policy violation.
This policy exists for the safety of both you and other members.
Your Prosper account contains sensitive financial information. Providing your Prosper screen name, email, and possibly your password represents a risk to the safety of your Prosper account. You should never provide this information to anyone.
By providing links and references on your member page to websites that gather such information you encourage other users to do the same thus creating increased risk.
In order to create a safe and trusted marketplace it is important that all members abide by the Prosper policies.
Oh, they've changed it to be more specific. You know, the more I look at that text the more it angrifies me. (Yes I know angrify is not a word but "angers" didn't quite do it for me!)
Honestly, Prosper. "Unauthorized third party site"? That is wrong on so many levels. First of all, I hate to break it to you, but you don't get to say what forums on the internet are "authorized" or not. Second, this attempt at a negative spin makes no sense considering that your own employees are *members* here. One of your founders (apparently the person who has been going in and deleting people's profiles, no less) used to MAINTAIN a BLOG here! "Unauthorized." WhatEVER.

Then there's this strange attempt to frighten people who aren't all that internet-savvy. (I say that because those who are internet-savvy wouldn't be taken in by this nonsense.)
Providing your Prosper screen name, email, and possibly your password represents a risk to the safety of your Prosper account.
Again, wrong on so many levels. First, it reads to me as a vicious, unsubstantiated accusation directed specifically at Ferrix, since they didn't delete links to other third-party sites, just this one. They know who Ferrix is. They know how to get in touch with him, they know he's not out to steal anybody's identity.

Second, .org does not ask for your Prosper password. In fact, IIRC, when I signed up I was specifically told to choose a *different* password (which is something everybody should know to do anyway-- you should always vary the passwords you use on the internet). So, there is no security risk to be concerned about, and again, this notice Prosper is sending out is pure malicious nonsense.
You know, I'm sad to see everything that's been happening lately, and still hope (irrationally, I know) Prosper can somehow re-establish the ties it had with the community in the beginning. I just do not understand the way the Prosper personnel are behaving now. I've seen some speculation that something is happening behind the scenes that is prompting these actions. Maybe that's it. But they're going down the wrong road here and it's damaging everybody: Prosper itself, the lenders, the borrowers, the people who could have benefited from a successful, vibrant Prosper... everybody.