I've had proper citation drilled into me since high school. The citation format may change, and sometimes, the details you need to cite may change (whole document? Each individual table?). I always check my own references, and I've often had my references argued over.
So I was highly amused when I ran across this in scientific paper:
"Information sources are not volunteered, but can be selectively furnished on meritorious grounds."
This would not fly in consulting, in grad school, in college...
In case you were wondering if I was researching bomb thermodynamics or Microsoft intellectual property, I was not. As far as I could tell, the author was discussing entirely publicly available government documents.
I really wanted to contact the author, but I'm not sure my reasons would be entirely meritorious.