Yep, I am aware of this Vlk, but from my own experience albeit two years ago. I nearly gave up at the first hurdle when I couldn't get my email to work. Luckly for me I did have enough knowledge to get my email working and was able to contact Pavel who kindly sorted me out. Now I reason that not all Users will be able to do this so straight away that is one contact avenue closed off.
I also reason that most of us Users work, therefore when we try Avast for the first time it is at home, at a time when I expect your office is empty (European). The support on the forum is available 7/24 and is second to none with its helpful advice.
I appreiciate that you are a professional company, and that is why I only suggested doing this for the Home Edition. The Avast forum is a great asset to your Company, and there are a lot of home users like me who can confirm this. It may only be second level support, but the advice given is usually first class. I believe that this is confirmed when you look at the number of times a post is read, and you soon realise how popular the Forum is with the Users. (they can't all be wrong!)
Finally, I still think this is a good idea, I wish I had known about the Forum from the begining.