This is apparently a reference to the Taliban's repeated demand that any peace negotiations should be between itself and the United States.
The Taliban in March 2012 suspended contacts with American representatives in Qatar over a potential prisoner exchange and opening a liaison office in the Gulf state.
The militia has consistently refused to negotiate directly with the Western-backed Kabul government, against whom it has been waging an insurgency for 11 years.
Mujahid wrote that Western forces facing military defeat use such conferences as propaganda to conceal the deadlock in the country and "show that some activity and progress is going on".
US-led NATO combat forces are due to withdraw from Afghanistan next year, and efforts to negotiate peace have gained urgency as they seek to leave with some dignity.
Mujahid told AFP by telephone that the views in the lengthy "article" posted on the Taliban's website would be followed soon by an official Taliban response to the conference.