Geuh. I'm not a fan of phone verification.
Really I'm not a fan of phones. I'd much rather deal with email than with phone calls. Telephones are so 20th Century; in the 21st Century I want to do all my communication over IP.
For a short while I had an assumed identity on Facebook. I don't want to use the service with my own information because I dislike their decision making process. But as a spokesperson and main online presence for an organization, I figured I'd do Facebook's users a favor and use the existing Group and Page for the organization. I was made an admin of the group and started answering questions, pointing to the official website that's associated with the group. After a few rounds of that, Facebook threw a speedbump at me, demanding a phone number or a photocopy of my ID. Screw that, I won't provide your users a service. Facebook: if you're developing a communication system that's better than email, why would I need a telephone to use it?
Now I'm in my hammock, about to go to sleep, trying to post our yard sale announcement to Craigslist. The post button sends an email. The email has a link to activate the post. But then I get asked for a phone number they can call or text. So I enter my Google Voice number and open Google Voice in a new tab. I wait a while. I hit the check status. I get a vague message that "Your phone number could not be verified. Please start over with another number." with a troubleshooting claim of "Some Voice over IP (VOIP) phone numbers (including Cricket, MetroPCS)." A little Googling found other Craigslist users that have found that Craigslist won't use Google Voice numbers for verification. Grrrrrrr. amusingly, after verifying that I have a frickin' phone number, I then get a CAPTCHA.
I really don't like it when a tool requires the use of a completely unrelated tool. I kinda want to go back to the old days when the only thing the Internet needed your telephone number for was a modem.