This whole conversation is ironic, considering [Mike] Ely’s earlier protests against the Comintern “universalizing” the Soviet model on everyone, but whatever.
The question of Yugoslav socialism is not as straight forward as the sectarian critique “Is Yugoslavia a Socialist Country?” would have you believe. Indeed, the Maoists themselves never had a clear position on this issue, as they vacillated between recognition of Yugoslavia as a socialist country and sectarian opposition, change which was dependent on Chinese relations with the Soviet Union, not ideology. For example, while Yugoslavia was one of the first countries to recognize the PRC in 1949, Mao didn’t reciprocate due to the split with the USSR. However in late 1954 the CCP reestablished party to party relations with the “renegade” Tito, which effectively meant recognition of Yugoslavia as a socialist country. In 1958, after the League of Communists of Yugoslavia published its draft before its party Congress in April, Yugoslavia came under fire from first and foremost the “revisionist” (or in Ely’s view, “capitalist”) Soviet Union. Following the USSR’s lead, China began polemical attacks against Yugoslavia and broke off party to party relations. In the early 1960s, the Sino-Soviet split began to be open and Yugoslav-Soviet relations improved. Chinese anti-Yugoslavism stemmed from the view that Yugoslavia was too close to Moscow. As a result, relations remained frosty until the late 1960s, at the height of the Cultural Revolution. The main reason for this is due to Yugoslav support for Czechoslovakia against the USSR. Relations from 1970-1977 were quite friendly, or at least not hostile. No longer would we hear any complaints about Tito from Mao. In 1977 Hua Guofeng, who most anti-revisionists uphold as a staunch Marxist-Leninist, reopened party to party relations with Yugoslavia – which again meant recognition of Yugoslavia as a socialist country. Not coincidentally at this time, Sino-Soviet relations were cold.