Unless you also believe that not playing basketball is a sport, not learning piano is a hobby, and not being able to sing is a talent; then atheism is not a religion.

Nope, if someone follows a religion, it means they follow a set, written way of life with set morals and certain practices. Being an atheist is being free to do as you will without the need of some deity to tell you how to lead your life.

I'm pretty sure atheism is the deliberate disbelief of all religion. So no.

Atheism has no doctrine, dogma, scriptures, holy men, deity, worship, adherence, ignorance of facts, rituals, sacrifices, and there is nothing that necessarily connects two separate atheists outside of their disbelief in one more God than the purported theists.

I find it humorous that theists try to insult atheists by calling atheism a religion. I guess even theists recognize that a religion based ideology is faulty =3

who in there right mind would think atheism is a religion

A religion is a belief of something beyond our imagination.

Atheists don't have this. They only believe what they have sense able contacts with (except for feeling - apparently that is a pointless, needless and powerless gift the human being is given, according to atheists)

Atheism is not a religion it is simply a rejection of faith and dogmas.