False:

1. "Tankie" was coined by orthodox communists to describe and criticize party members who supported the Soviet Union's use of military tanks to brutally crush the Hungarian Revolution of 1956. And, since you really love sources,

The term "tankie" was originally used by dissident Marxist–Leninists to describe members of the Communist Party of Great Britain (CPGB) who followed the party line of the Communist Party of the Soviet Union (CPSU). Specifically, it was used to distinguish party members who spoke out in defence of the Soviet use of tanks to suppress the Hungarian Revolution of 1956 and the 1968 Prague Spring, or who more broadly adhered to pro-Soviet positions.

https://en.wikipedia.org/wiki/Tankie 2. The Tiannamen Square protests are led by a vast majority of students. Reading the article you cited, it states: "...and are clear that the "protesters" (rioters) initiated the deadly violence in Beijing (none of which occurred in Tiananmen Square itself)." You can see that this mofo denies the massacre happening because it literally didn't happen in the Square (true, but a non-sequitur). Secondly, that the protestors initiated the violence. The protests were peaceful, until the Chinese government declared martial law and ordered thousands of People's Liberation Army (PLA) troops into Beijing. 3. Sure. The article is fucking misleading. Let's assume it is right, and even then, your (3) is yet again a non-sequitur: because the protestors initiated the violence does not make the massacre justified.