Craigslist Requiring Phone Authentication

on 01 January 2010  Articles  12 Months, Authentication, Authorization Code, Blacklisting, Craiglist, Craigslist, Domain Name, Domain Names, Domain Sale, Existing Users, Sign Ups, Sms, Sms Code, Ups, Valid Phone Number

It appears that Craigslist is now collecting phone data on its users. I wanted to follow up on my previous domain name post by trying to see if Craigslist would let me place a domain name for sale ad. When I logged into my account which I've had for more than 12 months, Craigslist asked me to authenticate my account by providing a phone number:

(Here's the text from Craigslist)

We need you to provide a valid, working phone number so that we can verify your account.

To help enforce our terms of use, craigslist requires an account, verified by phone, for posting in certain categories. Terms of use violations will be subject to account suspension and blacklisting of the phone number used to verify the account.

After entering your phone number below, you will receive an automated call or SMS and an authorization code will be provided to you.

Enter this authorization code on the next page, and your account will be verified.

While being able to post or offer domain names for sale on Craigslist is a completely different topic, I'm wondering how the requirement for authenticating an account via phone will affect users. Will new user sign-ups drop? Will existing users stop using Craigslist due to the apparently recent requirement for phone authentication?

While Craigslist says only "certain categories" require authentication for posting, I could not find a single category that would allow me to post an ad without giving up my phone number. OK, I tried to authenticate my phone number and this is what I get instantly:

Not sure what is going on at Craiglist, but after entering my valid phone number, I am asked to start over with another number.

What has your experience been with this new requirement? Did you provide Craigslist with your phone number? Did you run into any issues when trying to enter or provide your legit phone?