Although I'm for the idea, people won't even vote yes for it in DF, especially if they're DPS, healer and tanks will vote for yes imo.

Because simply they don't want another responsibility, unless they're confident enough they can pull the "good" numbers.

The JP community has been asking for an in-game built-in parser exclusively only for training dummy, I wish it gets implemented soon.
Because most people don't even know how to set the parsers right, i.e. you're parsing, your friend is also parsing, both may yield different numbers.

Me included ;_;