Msg#: 4667950 posted 9:57 pm on May 2, 2014 (gmt 0)
The different is that even a blank robots.txt will shut WMT up, thus no more reporting errors. Agreed that there is no requirement for robots.txt on any website. Heck, I ran web sites for near 10 years before I even heard about robots.txt! :)
These days it does serve a semi-useful purpose, so learning about it is not a bad idea.