> The painful to answer question is whether the intention is to block the spreading of lies or the spreading of truth?

What it should be about is preventing someone else from blocking the spreading of truth.

"Block the spreading of lies" is something authoritarians say when they want to declare any criticism of themselves to be a lie and censor it. You can't block the spreading of "lies" without ordaining someone as the decider of truth and there is nobody you can trust to have that power.

But if we were actually doing what we should then what we would be doing is developing censorship-resistant uncentralized systems rather than fighting over the keys to the censorship apparatus.