Q. What computer abuse would you like to eradicate? How would you do it?

I really hate spam. Receiving unwanted or junk e-mails is annoying for me. The issue on this is not the content of the e-mail but the consent.

Im currently using e-mail services from google (Gmail) and yahoo (Yahoo! Mail). They both have spam filters but I'm still receiving lot of unsolicited e-mail.

I want to be part of the solution to this kind of computer abuse. What I gonna do is to study and implement existing machine learning algorithms that are used in spam filtering. And the last and never ends ambitious thing to do is to improve those existing algorithms.