If an unscrupulous person were to install and knowing use a malicious program for personal gain, that might make the program malicious or unethical, but it does

If an unscrupulous person were to install and knowing use a malicious program for personal gain, that might make the program malicious or unethical, but it doesn't make it malware by (what I believe to be) the common definition of malware. Take the example of a script kiddie who wants to hack his neighbour's wifi and downloads a program that does that but also prominently notes that your computer will become part of a spam botnet to support development of the utility. Is it malicious and unethical? You bet. But not everything malicious is malware. I think most people are arguing with you about your terminology. You decry Mega's plan as immoral, and you can say that it uses similar techniques as other malware programs, but that doesn't mean that it is malware. On the deeper ethical issues, we'll leave that at agree to disagree.