DNA testing?

Umm. Fyi, children get 50 percent of their DNA from each parent. As a result, a siblings' and blood relatives' DNA are all similar. That's why related persons' DNA can be used to identify others.

I think the point was that with 50-ish siblings there is a decent amount of men out there with big beards, turbans, and matching dna so further proof would be needed before the initial person posting would be satisfied.