After updating to version 3.7.1 of SlimStat, some visitors get wrongly registered with the IP 127.255.255.0. Since I'm in Europe, I enabled obfuscation of visitors' IPs. So I don't know if this is on purpose or just a bug in the way SlimStat looks up and registers visitors' IPs – presumably it's the latter, because so far SlimStat has always saved the right IPs and associated visitor countries with the last octet converted to "0". And it still does that, except for some, but I haven't found a pattern yet.
My site is http://benung.nfshost.com, if it matters for support.