Corbin saying that those regimes on balance did more good than harm is not the same as directly defending genocide as some of the programmers of this site do.

This is literally what all MLs believe. All MLs acknowledge the mistakes of past socialist experiments the people that don't are a literally tiny insignificant number of people inflated into a meme that is used to attack socialism in general. There are only too positions that have been used to create this myth and that is the idea that holodomor was intentional (it absolutely was not) which is used by nitwits to claim a genocide was performed by way of famine, and the xinjiang issues that were inflated into nonsense and then backtracked on by the US state department.

The point generally is that tankie is a nonsense word used to attack the entire left and eliminate nuance. It prevents conversation. It is a thought-terminating word dumped into conversation by everyone that opposes socialism as a means of preventing any and all discussion that might make people think critically or understand any nuance that people in the left actually have.