I’ve heard that Justin Sun wanted to Oikos to run an ieo on his Poloniex exchange. Oikos refused that offer and Sun got offended. He announced that Oikos has “some weak places in their security” and advice investors to stay away from the project.
Yeah also heard about that but someone said it is fake information that Justin never give such offers, I think every project have rights to choose exchange they want to list on, turning the offer down should not be enough reason to want to discredit the project.