I have siblings in the US on DS-160

In looking at your history, putting down the fact that you have three siblings now in the US if you did not put them down previously would in my estimation not be a reason to deny the visiting visa renewal application. You have shown that you have adhered to the terms of the B1/B2 visa over the years; attempting to immigrate through brothers and sisters is a very long process and not usually a temptation to abuse the visa by overstaying in the US: and you may be able to say that you were confused by the form question that you thought asked whether you had any immediate relatives in the US which you thought only meant spouse and children. Due to the limitations of the Lawyers.com Forums, Alan Lee & Arthur Lee, Esqs.’ (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.