@mwlucas@bsd.network @phessler Joking aside, domain knowledge is what can make our lives so interesting, especially on the support side.
I find this very true with people (researchers, in my case) encountering *BSD/Linux for the first time in a heavy lifting capacity: They're learnt to use computers in a certain way that required surface knowledge, which is totally normal, but then they must recognise that they have to learn perhaps a couple of different areas.
It's a challenge all around.