Although I agree with this, this should be an option on demand, i.e., chosen by the users who want to tweak avast installation and not by default. It breaks completely the idea of the Community and the improvement of avast by its 175+ million users.
There are three basic approaches:
1) Have the participate option enabled by default such that those who don't want to participate would have to go into settings and disable it. This would be called an opt-out approach.
2) Have the participate option disabled by default such that those who want to participate would have to go into settings and enable it. This would be called an opt-in approach.
3) Require the user to choose whether to enable or disable it (during installation). This would be called the ask approach.
Tech: Which do you advocate? Edit: Or if something else, what is that approach?