@675,670
I'm pretty sure most of the ones looking at those really old threads are indexing bots. As for why mc doesn't get them, I can't really say for sure but it's possible that they block or filter certain ranges from being counted such as Google IPs. I did something kind of similar with otakutalk to stop indexers from clogging up the db with blank IDs since they reject cookies. Also we're listed on some chanlist site but mc isn't, so that might have something to do with it as well.
@675,668
As long as Kyubee updates the software to avoid function deprecation.