Email Commands parsing

I've been playing about with the email commands parsing and the stuff that it does and I have a query.

I have the ability to forward a mail to an account that retrieves the email and will parse the subject and pop it on as a request. Which is great. 

It looks at the subject and removes the tag I pop in and removes the tags needed in the email subject so it obviously has the ability to identify this and remove them.

I then enter information into the email for the group and other information and it does actually populate this fields however it leaves the comments in the actual request which just looks a bit rubbish. The fact that it can see the fields and populate them in servicedesk means it must be able to identify them. Is there not a way it can also purge them from the request when it populates?? 

I've included an example as below as an example so you can see what I mean.

Example:-

Subject: ##LOG Install recovery software

 ##GROUP=Team1

##REQUESTER=User1

 Can somebody action the request for User1 please.

End Example ---------

So I've sent an email like that - it creates a request called "Install recovery software" so it has identified the ##LOG and removed it. and then populates the request with all the information above - with the group and requester set as above. 

If it's reading the data enough to populate those fields then surely it must be able to remove them??? Or am I missing something?!

Thanks