Why don't researchers publish failed experiments?
"Why don't people publish failures?"

Actually, they do.


Journal of Negative Results (ecology and evolutionary biology)
Journal of Negative Results in Biomedicine
Journal of Pharmaceutical Negative Results
Journal of Interesting Negative Results (natural language processing and machine learning)
Journal of Negative Results in Environmental Science (no issues yet?)
Journal of Errology (no issues yet?)


and so on...

(You might also want to see the Negative Results section of the Journal of Cerebral Blood Flow &amp; Metabolism.)