Thats the problem. You repeated what you 'knew', which was a known myth about security. (Security through obscurity.) This falsehood is rather consistently repeated, and thus very annoying. Even when you disclaim what you say, you are still repeating an insulting argument.
<snipped more security through obscurity argument. >
I didn't say break into, but proving the mac was infected by a virus. You just argued about something that didn't exist. Here is the link to the bounty. The post is entitled 'put up or shut up'. It was basically saying that if you can show a mac was infected by a virus, you get $500. For doing nothing but having a screenshot of a mac with a virus. (note that the contest did NOT allow creating a virus) For a windows user, that would be easy money. For a mac user, that was money nobody saw.
I'll apologize for my apparent shortness. It seems rude to me when people state or argue things that are disparaging on their face, without knowing actual information about the subject. If there is more care taken with a statement, there would not be such a response.
