I would like to answer the question What is the biblical support for the Nicene creed's statement of the Son being "eternally begotten"? but I am Unitarian. That means I do not believe there is any biblical support for this, and I would like to explain why. I'm basically asking if this is appropriate for any question that asks for biblical support of something. I understand that I probably will not receive many up-votes, but I'm not really concerned with points anyways. Is this okay with everyone?
Your personal convictions are completely irrelevant, but your answers must match the perspectives asked about.
If what you want to write disagrees with the premise of the question, you can't post it as an answer.
Sometimes it is appropriate to challenge a question in a comment, such as saying "actually the Catholic Church doesn't believe X, as shown in the Catechism reference Y." But if the question can't be challenged in that way, then there isn't an appropriate venue to post disagreement.
What can you do? Two options: write a new question which aligns with your convictions, or let the question remain unanswered and let the silence speak for you.
Is this okay with everyone?
No, it is not okay.
Just because it's tagged biblical-basis does not exempt answers from following the same scoping rules we do across the site. You may not post a contrary view to whatever doctrine is being questions. Just like a question that asks "What do Catholics believe about X?" must be answered from a Catholic perspective, so also all questions that ask "What is the basis for the belief X?" must be answered from the perspective of belief X. You may not post answers defending Y instead.
All biblical-basis questions should be read "What do people that believe X see as the Biblical basis for X?"