Engels, Lenin and Bukharin all talked about state capitalism. Lenin decried it as not real socialism.

the erroneous bourgeois reformist assertion that monopoly capitalism or state-monopoly capitalism is no longer capitalism, but can now be called "state socialism" and so on, is very common

Lenin, The State and Revolution

That was until after the October revolution, at which point he seemed to think it was based and cool actually, and that it was definitely what the USSR was doing.

Reality tells us that state capitalism would be a step forward. If in a small space of time we could achieve state capitalism in Russia, that would be a victory.

Lenin, Minutes of the Sessions of the All-Russia C.E.C., 4th Convocation. Verbatim Report

This is around the time he stripped the soviets of their power and disenfranchised the workers in favour of a central state that alienated them from control over the means of production.

You know, like a capitalist.

And now tankies are distancing themselves because they can't square the circle that their beloved ~~revolutionary~~ heroes were actually capitalists, and they pretend the concept doesn't exist.

So tell me, was Lenin wrong about this? If so, was he wrong twice? Why the flip-flopping on whether it was good or bad? Nobody seemed to dispute at the time that it existed, and an analysis of what happened shows that the USSR liberalised quickly. The bolsheviks were in effect liberal reformists.

EDIT: They weren't revolutionary, I don't know why I ceded that rhetorical ground.