Originally Posted by Mirch

Why do people forget to add subject line to their emails ? Who do they not start with writing the subject of email first ?
I also hate when even if they are sending a new email to me on a new subject but they will press reply button on my old email and do not change the subject line.
For example I have received an email from an acquittance. Subject line of which looks like this.

Re: Re: Re: Re: Re: Re: Re: Re: Re: Re; Re: Salam