I see the same behaviour on my server. This seems to be caused by the messenger Empathy. When no one with that messenger is connected, none of these connections appear, but once someone with that messenger connects, those connections pop up. I have no idea how to conquer this without disallowing Empathy, neither do I know why Empathy causes this.

This is what it looks like 30 sec. after connecting with Empathy:

http://666kb.com/i/bec5ym5gu7gyab012.gif

Update:

I checked the source-code of Empathy's Jabber-module "telepathy-gabble". In it's connection.h I found this:

/* List of public SOCKS5 proxies:
 * http://coccinella.im/servers/servers_by_proxy_bytestreams.html */
#define GABBLE_PARAMS_DEFAULT_SOCKS5_PROXIES             \
    { "proxy.jabber.org", "proxy.jabberfr.org",\
      "proxy65.rooyee.biz", "proxy.jabbim.cz",\
      "proxy.911910.cn",\
      "proxy.downtempo.de",\
      "proxy.im.flosoft.biz",\
      "proxy.jabber.bluendo.com", "proxy.jabber.dk", "proxy.jabber.freenet.de",\
      "proxy.fsinf.at", "proxy.jabber.minus273.org",\
      "proxy.jabber.planetteamspeak.com", "proxy.jabber.tf-network.de",\
      "proxy.jabjab.de", "proxy.jabster.pl",\
      "proxy.schokokeks.org",\
      "proxy.ubuntu-jabber.de", "proxy.ubuntu-jabber.net",\
      "proxy65.unstable.nl", "proxy.verdammung.org", "proxy.vke.ru",\
      "proxy.vodka-pomme.net", "proxy.jabbernet.eu",\
      NULL }

/* These proxies appeared to be the same as proxy.jabbernet.eu
    "proxy.jabberchat.eu", "proxy.shady.nl", "proxy.nedbsd.be",\
    "proxy.nedbsd.eu", "proxy.nedbsd.nl", "proxy.4business.nl"\
*/

http://telepathy.freedesktop.org/releases/telepathy-gabble/

Looks like they hardcoded those servers.

Update 2:

I filed a bug report:

https://bugs.launchpad.net/ubuntu/+source/telepathy-gabble/+bug/487313

Update 3:

I filed another bug report:

https://bugs.freedesktop.org/show_bug.cgi?id=25279