[7] Sieradski organized hip-hop concerts with Israeli and Palestinian rappers, with a defunct project called Corner Prophets, with the stated intention of promoting peace and coexistence through the arts.

[9] On October 7, 2011, citing the Hebrew prophet Isaiah's admonition to fast by "feeding the hungry, housing the homeless, breaking the bonds of oppression," Sieradski organized a Kol Nidre Yom Kippur prayer service at Occupy Wall Street,[10] the mass demonstration for economic justice in Lower Manhattan that began in September 2011.

[20] Sieradski has been described as "a major figure of the Jewish Internet world and a cultural trailblazer with a diverse fan base" by The Forward.

[22] B'nai B'rith Magazine called him a "fresh faced iconoclast ... redefining American Judaism,"[23] and Tikkun said he was "fast becoming one of the most recognized Jewish literary voices on the Internet.

"[30] In June 2017, Sieradski was banned from Twitter for terms of service violations including the publishing of personally identifying information (sometimes referred to as 'doxxing'),[31] direct threats to the lives of the Jpost staff,[32][33] amongst other issues.

[36] In addition to the previous violations, Sieradski believes the ban could have also resulted from a campaign of harassment by a far-wing user called "Baked Alaska", who has posted antisemitic tweets,[37][dubious – discuss] or for tweeting to Courtney Love during a Twitter argument with Linda Sarsour,[38][dubious – discuss].