You're just stepping into the stack at some arbitrary level and figure "everyone should know how to do (and do) this at least".
For you it's configuring email servers and compiling linux kernels. Why not dig trenches for power cables or build towers for wireless communications? If the answer is "but I don't care enough about those things, I just build on top of them", that's exactly what others think about compiling linux kernels, writing boot loader configs or configuring email servers.
For you it's configuring email servers and compiling linux kernels. Why not dig trenches for power cables or build towers for wireless communications? If the answer is "but I don't care enough about those things, I just build on top of them", that's exactly what others think about compiling linux kernels, writing boot loader configs or configuring email servers.