These venues have had Word options for well over a decade or more. I recall a higher rate of Word (and HTML!) submissions in Agent97 -- the predecessor of AAMAS -- than I see in AAMAS now. At any rate I think there are few significant changes in LaTeX usage in those conferences.
You're right that the big place where Word shows up in CS is in HCI, software engineering, and interdisciplinary areas. Is it possible that, given your mention of CHI, that you're from these areas and possibly experiencing a sample bias?
These venues have had Word options for well over a decade or more. I recall a higher rate of Word (and HTML!) submissions in Agent97 -- the predecessor of AAMAS -- than I see in AAMAS now. At any rate I think there are few significant changes in LaTeX usage in those conferences.
You're right that the big place where Word shows up in CS is in HCI, software engineering, and interdisciplinary areas. Is it possible that, given your mention of CHI, that you're from these areas and possibly experiencing a sample bias?