Comment Between Completely Useless and Mildly Interesting (Score 3, Insightful) 187
This index is a quarterly (?) ritual for Slashdot and its between completely useless and midly interesting ever since 2001. We don't know what the exact metrics are, what statements we can derive from it and for which audience it could be really important (if ever).
We don't know what that kind of "popularity" actually means: only the top 2 of the list are over 10%, no. 9 is already under 2% of popularity.
If you are long enough in the SW engineering field, you'll meet some language, whether you like them or not. The exact kind depends on your field you are specializing in. You absolutely WILL meet SQL (8) in some form, not sure you ever will see Delphi / Object Pascal these days (9). If you are a Windows admin of any form (but not only there), you absolutely will meet Powershell (#44) in some form, not sure about LabVIEW (#46), even if you are a long-time EE engineer.
This index cannot say, whether you _should_ learn another language. It also does not say, how many projects are developed in it. There must be better metrics out there than this?