I responded to a fellow using the "atheism is just another form of faith than theism. I rather just say I don't know" so I responded with explaining the definition of atheism and theism and how agnosticism and gnosticism are used, that atheism is not gnostic atheism by default.
What came out next after a while was from another person that "while what you say is technically correct...it is also a perfect example of pedantry".
So was I unnecessarily nitpicking? Is using these words incorrectly faster way to communicate?
Although she retreated after she noticed that she misunderstood my comment, left me wondering although not shaken by it.