The reason I bought a subscription to Avast was because I wanted to be protected from viruses and the like. Viruses like the type which spam me incessantly with pop-up windows. Isn't it ironic that as my subscription nears it's end, Avast itself spams me with popup windows every 4 hours? It doesn't matter what I'm doing or how important my current task may be... a fat window in the middle of my screen appears, "Avast is going away soon! Hurry up and pay us again!"
This practice needs to stop. I like your service so I feel obliged to notify you that your constant "reminders" have caused me to seek protection elsewhere.