
I just wasted about half an hour going through spam that had collected in my inbox and deleting around 5,000 of the nasty little buggers. I am certain I lost a number of genuine emails that I missed in the flood of crap... but I'd already wasted way too much time. If you've sent me an email that I haven't replied to it may be that it was buried under all the spam. I'm sorry.
ISPs have the tools at their disposal to do a pretty good job of filtering out spam before it ever gets to the user, but many have chosen to sell those services instead of providing them free. This is a really bad idea. It encourages the criminals who produce spam. It also divides the ISP's interests from their customers. If a way was found to actually get rid of all spam, the ISPs that make extra loot from charging to block it would see that revenue disappear. They stand to gain financially from spam.
I'm cancelling my account with Pacific Internet soon for this reason, among others. When they were a small company, Werple, they had brilliant customer service, but since being taken over by the big US corporation I really don't want to know them anymore.