At the moment there seems to be a flood of email spam from <someone>@yahoo.com (<someone> being various first names) with the subject “hello.” I have to admit I rarely think of any imaginative subjects (for personal, letter-like emails) but at the moment I’m being careful with any email with subject “hello.” Luckily, the genuine emails can be identified by a familiar name and email address, but if someone I don’t know sent me an email through my website for example, I would accidentally overlook it if the subject header read “hello.”