The problem being, how does avast know the experience level of every user, it can't.
You don't have to and its an irrelevant point.
If I as the user tell you that i no longer want to see a message on MY computer, then i don't want to see it.
I agree with OP. Yes, i understand what Micro$oft says that XP and explorer will soon not be supported, and my response is "SO THE HELL WHAT - I don't care. stop pimping your new products in my face and let me get back to my work."
As a very experienced user, Yes, I see what you have said, now get out of my face.