>>49606523Aya's popularity checks out with this poll, so does Yukari's (but not as much), yet some other things don't match.
Remilia's threads are fast, I don't remember if this is only recently or if it's been like that for months, but the most recent example I can think of is a Remilia thread that reached bump limit in under a week. Her votes here don't reflect that.
Yuuka, Okuu, Satori don't reflect their votes either, honestly, if anything it's that Sanae's votes more or less align very well with the speed of her threads, but for every other character the votes and the speed don't correlate whatsoever. Some people don't vote, some people avoid their character's thread, it's a whole bunch of variables.
None of which really tells us why Reimu isn't popular. Are Reimufags just not devoted enough?