Never since using avast for over 5 years, however, I practice safe hex, take proactive precautions and exercise a degree of common sense, if it is to good to be true then that is likely to be the case. So I don't really expect to get infected, but should it ever happen, a robust back-up and recovery strategy should haul your a** out of the fire.
Polls can be anonymous, you just have to be logged on to vote, in the same way you have to be logged on to post, it doesn't say who has voted in what way, just if they have been infected in the last x months/years.
That however, doesn't say if that is with avast installed or another AV or multiple AVs. Or if you are reckless in your on-line activities or where that infection came from, in-line, usb, network, etc. So it isn't a simple question that can be put to a poll and have answers that can be collated according to AV, method of infection, risk level of the activity, etc...
