I base my trust on personal experience of the software I'm using not an arbitrary test, flawed or otherwise. I have had avast for almost four and a half years.
I pay more attention to the likes of av-comparatives.org though, the problem the majority of users have never heard of the sites that would be considered more robust/reliable tests. For that matter many haven't heard of or even gone looking for any sort of test site, many only see it in computer magazines, which can also fall into the good the bad and the downright ugly.
The problem defending the indefensible as it won't make a jot of difference to those who might be swayed by a one of set of test results over their own personal experience (for those who have used a product in the tests.
