Hi Bobvl,
IMHO we shall not accept Biyografya ID as source for notability, since it is crowdsourced.
Fatih Yiğit Demirci (Q113867492) for example is a total joke. He is a fucking student! There is no proof that his Instagram usage as a youngster ("e-commerce brands") have earned him any money.
Fatih Yiğit Demirci continues his higher education life at Hacettepe University. The young businessman, who started his entrepreneurial life with the e-commerce brands he founded, later brought the continuation of his successful initiatives and started the advertising agency. Currently, he successfully continues his studies on digital marketing and e-commerce.