Since I'm collecting data anyway, turns out I can track who makes the most posts. So I thought I'd turn evil like Google and run a query to see who is the most prolific poster; that query can be triggered by appending "?prolificity
" to the URL (or "&prolificity" if you already have some other string with the ?, like catsup) and seeing the results in the "from Everyone" dropdown. (And then don't forget to remove the "prolificity" from the URL to go back to normal...)
(March 22): Duh. You can now use the date fields ("between [date] and [date]") to control the time period for the prolificity check (eg: see who posted the most in the last week). This is an obvious thing to do, the pieces are all in place, why did it take me this long to realize it?
: And a half hour later I realize I can make the two other fields ("on" and "from") also usable for free, so why not? (NB: Using the "show last [number]" field to somehow limit the number of users returned in the "from" dropdown list would not be free, so I haven't done that; until such time that there are so many commentors that having them all
show in the dropdown list proves impractical, I won't bother trying to hack that in.)