I agree with taking him down in this case. A quick Google search would reveal that it's been done before and taken down before.
Southwest goes above and beyond the industry norm for making air travel painless (I fly them every week) and they have the right to keeping people from gaming the system.
The best solution I've found is to set your calendar reminder for 24hrs before your flight, with the confirmation number in the "Where" field, then quick copy/paste into their smartphone app. Takes two seconds and always gets you on the A-List. If that's too much work for you, pay them $10 for Early Bird.
This guy will make it more painful for the rest of us when they add CAPTCHAs.