"because we cannot place our trust in corporations"
Fixed your statement to demonstrate why Web3 is a thing. Once we saw how many scientists on FB, Twitter, LinkedIn, YT, etc got muted the past few years, the need for communication outside of the corporations is desperately needed.
There has never been a web problem with people being published. Run your own website.
What you are talking about is how large companies are not willing to amplify those voices.
Web3 so far has not been about new forms of publishing _or_ amplification nearly as much as it has been about owning generated cat drawings. I don't think it is meant to solve this problem.
There's also the question of whether uncontrolled and anonymous amplification is a societal harm.
As a consumer of publications, I am limited by the centralization of discovery mechanisms, to only see what big companies want to show me.
It becomes a bigger problem when they choose to show different people disjoint information. Eg. Somebody could plan and attempt a coup without me hearing about it till after the fact, even though they conspired quite openly
Can't really "Run your own website" without filtering out the unsafe hosts.
If you don't march to the beat of the drum, then Google, AWS, GoDaddy, MicroSoft, likely CloudFlare, IBM, etc will shut you down with little to no notice. & they're big enough to pressure others to do the same.
Thus, an underground web is needed for actual discourse.
