For my masters thesis I was told repeatedly that I my writing was too informal. If I can't have fun writing academic papers, what's the point? I tried to appro

For my masters thesis I was told repeatedly that I my writing was too informal. If I can't have fun writing academic papers, what's the point? I tried to approach writing my thesis as something a good pop science book(GEB) should be, but all it got me was points deductions. My thesis concerned data mining.