According to Foresight News, Seraphim, the Head of Growth at Ethena Labs, disclosed in a recent post that he is a co-founder of OnlyFans. Seraphim stated that he had never publicly discussed this before, and to his knowledge, no one else had either. He revealed that he was involved in building OnlyFans before Leonid Radvinsky, the major shareholder of the platform, took over. Seraphim agreed with Radvinsky's assertion that he was the best person for the job due to his unique skill set, which included visionary thinking, a deep understanding of webcam technology, and a passion for empowering adult content creators. This combination made Radvinsky the perfect candidate for the task. Seraphim described Radvinsky as a true builder.

After the platform's launch, development was slow. To generate more interest, Seraphim would occasionally create random model profiles to give the illusion of increased activity, hoping to motivate the community. When Radvinsky asked if he was responsible for these profiles, Seraphim would lie and deny it. Eventually, OnlyFans gained massive attention, which Seraphim described as both overwhelming and life-changing, bringing both positive and negative impacts. He left the company in March 2019. Seraphim hinted that he might share more details in the future, but for now, he felt the need to express these thoughts.