cctalk delay?

Curious what causes a several day delay in mail getting out of classicmp.org? I typically see people's replies to postings other have made a day or more before I see the original posting. Postings about gear for sale or trade show up long after the gear is gone. What causes the bottleneck? How do some people see postings and are able to reply to them while some of us incur the delay? One example, Received: from huey.classiccmp.org (huey.classiccmp.org [209.145.140.19]) by azure.pobox.com (Postfix) with ESMTP id 71DCC40A3E8; Mon, 10 Sep 2012 08:59:51 -0400 (EDT) Received: from huey.classiccmp.org (localhost [127.0.0.1]) by huey.classiccmp.org (8.14.4/8.14.4) with ESMTP id q8ACxGmi065486; Mon, 10 Sep 2012 07:59:16 -0500 (CDT) (envelope-from cctech-bounces at classiccmp.org) Received: from billy.ezwind.net (host-209-145-140-29.ezwind.net [209.145.140.29] (may be forged)) by huey.classiccmp.org (8.14.4/8.14.4) with ESMTP id q88MpUSX042100 for <cctalk at classiccmp.org>; Sat, 8 Sep 2012 17:51:30 -0500 (CDT) (envelope-from mc68010 at gmail.com) Received: from mail-pz0-f51.google.com (mail-pz0-f51.google.com [209.85.210.51]) by billy.ezwind.net (8.13.8/8.13.8) with ESMTP id q88MpNgW039919 for <cctalk at classiccmp.org>; Sat, 8 Sep 2012 17:51:29 -0500 (CDT) (envelope-from mc68010 at gmail.com) Received: by dajt11 with SMTP id t11so765659daj.38 for <cctalk at classiccmp.org>; Sat, 08 Sep 2012 15:51:23 -0700 (PDT) The mail was received at huey.classiccmp.org on Sat, 8 Sep 2012 17:51:30 -0500 (CDT) but then didn't move to the next step at huey until Mon, 10 Sep 2012 07:59:16 -0500 (CDT) Not intending to bash anyone or anything here-- just wanting to understand the issue. Chris -- Chris Elmquist