[_delirium]

> if you write your paper in Word, readers will be biased against it (consciously or subconsciously)

I've found that happens mainly with papers that are not only in Word but formatted a bit weirdly. Those can be avoided by people who use Word regularly, though, and in that case you usually have to look pretty closely to tell if something was done in LateX or Word, if they both use the same template (e.g. the Word vs. LaTeX versions of the ACM paper template).

Telltale "Wordisms" that I run across fairly often, and probably do have a negative reaction to: 1) large spaces due to justification in two-column formats without hyphenation (solution: turn on auto-hyphenation); 2) a paragraph being in a totally different font or font size from those around it (solution: paste without formatting); and 3) PDF title set to something like Paper.docx (solution: set a title when exporting to PDF).