How many users know about kaspesky free or bitdefender free? For averge user is still better extension then 3rd party AV in case if it comes to conflicts with OS.
And this tests has nothing to do with real life. 99.9% users are not looking for malware or any other way to get infected. Even systems with kaspersky/bitdefender/whatever get infected.
Check other IT forums and you will see how many people have 3rd party AV and got infected.
