If agnostics lack proof of God's existence, why aren't they Atheists? I think all of them should be called atheists.
Because they have a different position on the existence of deities. Isn't that obvious. Read
this if you really don't understand.
There's no "hard" atheism, atheism is always the weakest option.
One can easily differentiate between strong/positive and weak/negative atheism. According to
The Cambridge Companion to Atheism, "If you look up “atheism” in a dictionary, you will find it defined as the belief that there is no God. Certainly, many people understand “atheism” in this way. Yet this is not what the term means if one considers it from the point of view of its Greek roots. In Greek “a” means “without” or “not,” and “theos” means “god.”1 From this standpoint, an atheist is someone without a belief in God; he or she need not be someone who believes that God does not exist.2 Still, there is a popular dictionary meaning of “atheism” according to which an atheist is not simply one who holds no belief in the existence of a God or gods but is one who believes that there is no God or gods. This dictionary use of the term should not be overlooked. To avoid confusion, let us call it
positive atheism and let us call the type of atheism derived from the original Greek roots
negative atheism. No general definition of “God” will be attempted here,3 but it will prove useful to distinguish a number of different concepts of God that have figured in the traditional controversies and debates about religion. In modern times “theism” has usually come to mean a belief in a personal God who takes an active interest in the world and who has given a special revelation to humans. So understood, theism stands in contrast to deism, the belief in a God that is based not on revelation but on evidence from nature. The God assumed by deists is usually considered to be remote from the world and not intimately involved with its concerns. Theism is also to be contrasted with polytheism, the belief in more than one God, and with pantheism, the belief that God is identical with nature.
Negative atheism in the broad sense4 is then the absence of belief in any god or Gods, not just the absence of belief in a personal theistic God, and negative atheism in the narrow sense is the absence of belief in a theistic God. Positive atheism in the broad sense is, in turn, disbelief in all gods, with positive atheism in the narrow sense being the disbelief in a theistic God. For positive atheism in the narrow sense to be successfully defended, two tasks must be accomplished. First, the reasons for believing in a theistic God must be refuted; in other words, negative atheism in the narrow sense must be established. Second, reasons for disbelieving in the theistic God must be given.
These categories should not be allowed to mask the complexity and variety of positions that atheists can hold, for a given individual can take different atheistic positions with respect to different concepts of God. Thus, a person might maintain that there is good reason to suppose that anthropomorphic gods such as Zeus do not exist and therefore be a positive atheist with respect to Zeus and similar gods. However, he or she could, for example, be only a negative atheist with respect to Paul Tillich’s God.5 In addition, people can and often do hold different atheistic positions with respect to different conceptions of a theistic God. For example, someone could be a positive atheist with respect to Aquinas’ God and only a negative atheist with respect to St. Teresa’s God."
Also, how have you concluded that atheism is always the weakest option? Certainly not through any logical process I'm familiar with...
Agnostic's Prayer
"Insofar as I may be heard by anything, which may or may not care what I say, I ask, if it matters, that you be forgiven for anything you may have done or failed to do which requires forgiveness. Conversely, if not forgiveness but something else may be required to insure any possible benefit for which you may be eligible after the destruction of your body, I ask that this, whatever it may be, be granted or withheld, as the case may be, in such a manner as to insure your receiving said benefit. I ask this in my capacity as your elected intermediary between yourself and that which may not be yourself, but which may have an interest in the matter of your receiving as much as it is possible for you to receive of this thing, and which may in some way be influenced by this ceremony. Amen."
I'd post the troll's prayer, but I'd probably get banned.