Xenode's old posts keep showing up as new in Planet Fedora

[Jonathan Dieter]

I've noticed that whenever Xenode (FAS username jmlevick) adds a new
post to Planet Fedora, many (all?) of their old posts show up
immediately after their latest post, filling up 3/4 of Planet Fedora's
main page.

I'm not sure if this is the right place to report this, but is there any
way to fix this (or, if it's user misconfiguration, to block this user
until they fix it)?

Thanks,
Jonathan