Top posting

[Bruno Wolff III]

On Fri, Jun 25, 2010 at 05:50:47 -0700,
  Suvayu Ali <fatkasuvayu+linux at gmail.com> wrote:
> 
> Like I said in my post, that requires me to create a filter for every 
> such case.

You could probably detect them using pattern matching. If you keep your
email locally, you could check the messages on delivery and drop ones
that appeared to be inappropriate top posted responses (or cases where
appropriate trimming doesn't appear to have been done).