Sikorski has been noted as the editor of the news blog Tundra Tabloids, which has been affiliated with the pro-Israeli counter-jihad movement.
[10] According to scholar of antisemitism, Manfred Gerstenfeld, writing for Israel National News, without Sikorski's blog "hardly anything regarding Finnish anti-Israelism and anti-Semitism would be known abroad".
[4] Sikorski has close contacts with the blog Gates of Vienna and its editor Edward S. May, for which he has translated texts from Finnish to English, and has participated in several of the international counter-jihad conferences.
[10] In 2010, Sikorski exposed a blog post by the head of Finland's Amnesty International branch, Frank Johansson, which termed Israel a "scum state".
[12] In 2013, Sikorski gained media attention for translating a Dutch television interview with Turkish Muslim youth who praised Hitler for killing Jews.