Than what are you doing in a Quranist forum? If you don't believe in the Quran and are not interested in it than why are you here? I don't understand people coming here telling us they lost faith and stuff. Do you want us to convince you otherwise? Or do you expect that maybe you can convince some here to do the same you did? I am not sure what are you gaining here if not to some how provoke people.
Why are you angry ? You're starting to act as the religious sunnis when they find out that someone has left their religion. Perhaps you are of the purified, and never felt that you were losing belief in your present spirituality, even though, let the others doubt, for it is part of the path. They are bringing up their concerns and doubts, you should, instead of posting such, answer and explain all of their questions if you can.