Hi -midnight,
I don't know why the excessive and insensitive comments would drive you away. Evangelists are users and are not employees of avast. If this person was not an evangelist would you have the same feelings?
I have become irritated with this same person and I don't understand how switching products would solve the problem for you, me, or anyone else.
You have every right to report whoever is acting against the best interests of yourself and other users.