To each their own, but the antibody testing is not a confirmation or proper diagnosis, but a first step. If gluten is taken out of the diet, then the diagnosis cannot be made and the cause will never be known. That's the very unfortunate situation I'm in, and I wish I had done it differently, but I didn't know this.

"Keep in mind that positive antibody results combined with positive genetic results only suggest the presence of celiac disease—the test results cannot confirm it. If these screening tests come back positive, the next step in diagnosing celiac disease is to get an endoscopic biopsy of the small intestine." (Screening - Celiac Disease Foundation)

If gluten is taken out, the endoscopy will unfortunately be useless for diagnosis purposes.