Let’s say you’ve written a test script for a customer in VBScript. In the wild world of spam and malware, how do you get it to them? Attachments ending in .vbs are a total loss, and putting the file in a Zip file doesn’t seem like much of an improvement. I can password protect the file, but then it really starts looking like a virus. It’s amazing the degree to which scumbags have ruined email.
Update: The obvious answer is changing the extension to .txt.