Swartz never created a social media platform nor had to make decisions on how to moderate user generated content across millions of users. He made JSTOR articles freely available.
Swartz created a company called Infogami "that would help users build websites". That company merged with reddit, which had already raised $100K. Swartz didn't create a social media platform, and he never had to make decisions on how to moderate user generated content across millions of users.
He is credited as a co-founder of Reddit.
https://en.wikipedia.org/wiki/Aaron_Swartz