A few mathematically illiterate people believe that somehow the use of anomalies would make NCDC data tampering go away. Below are the anomaly and absolute temperature graphs. As you can see, it makes absolutely no difference. All that the use of anomalies does is shift the Y-axis.
The only reason to use anomalies is if you are comparing different time periods during the year.
Obviously it would make no sense to compare absolute temperatures of January-May 2014 with January-December 1934. But comparing January-May 2014 to January-May 1934 is just fine.
Again, I am happy to debate and humiliate anyone who disagrees with this basic mathematics.