I am also pretty sure that the information passed on to you prior to installing avast! in the eula,
pretty well spells out what avast! can and can not do with the information harvested.
You agreed to all of this prior to installing avast!. Even if you didn't read all of the eula or if you totally
understood everything spelled out in the eula.
Just as you do with every other program installed on your computer. Including your operating system.
Don't feel bad, I hardly ever read the eula since I want to use the program not spend my time
becoming a Philadelphia lawyer.