[kaishiro]

Personally (I don't speak for all devs, although some people on HN certainly seem to think they do...), the issue I have is that I rarely receive a response as clear cut as the one you propose.

"if a designer is asking you to more "3px", it is to align that element with other stuff on that page."

If they want elements aligned, or snapped to a grid, or whatever - sure, there is justification there. It's when I'm handed design changes with no justification that I get riled.

But yeah, at the end of the day engineers and designers really need to have a few more beers together.