Incorrect Format

Why should users be forced to correct and resubmit a form because they didn't properly format an otherwise valid phone number?

We have the technology. I can think of no good reason for a company with net profits of over a billion dollars per month to not create software that doesn't force users into entering contact phone numbers in the format required by a back-end software system.

And why did they ask me for my phone number? They have my phone number. I've been a customer for over 20 years. They should know how to contact me.

That was the wrong password

I got the above screen after failing to login to my Meetup account to RSVP for a meeting.

As a user, I like that it tells me that I used the correct email address but wrong password.

However, this system has just verified information without authentication. It tells me that a valid user email address was used. This information could be helpful to someone trying to gain unauthorized access.

Now, in this case, I don't think disclosing that email accounts exist is a huge deal. This is a social networking site. This is not a banking system. This is not a medical records system. It is not an interface to access private information. Meetup profiles are public and searchable on the web -- although not email addresses. I say no problem in the context of this site.

For other systems, giving non-authenticated people information that narrows down access credential options could be a huge security problem.

Compare the extension to other extensions

Just what technical knowledge is expected of Outlook users?