First, I don't think governments should be banning the speech across the entire internet. But companies with large social platforms can and probably should do so in certain situations, such as a pandemic when conspiracy theories are being spread which make controlling the pandemic more difficult, and can lead to more deaths.
As for where to draw the line, society always has to figure out where to draw lines on what behavior is allowed and what isn't. It's always a matter of tradeoffs, not some absolute principal with no exceptions. Society may very well go too far in one direction, and often has, but we still end up drawing lines somewhere. Hacker News certainly draws the line on some speech, because of a desire to keep the site respectful and on topic.
For Covid, I think the reasonable standard acceptable to a majority of people is to ban intentional spread of conspiracy theories with clearly false facts that discourage people from being vaccinated, or putting harmful substances in their bodies to combat the virus, which are not medically approved.
As for where to draw the line, society always has to figure out where to draw lines on what behavior is allowed and what isn't. It's always a matter of tradeoffs, not some absolute principal with no exceptions. Society may very well go too far in one direction, and often has, but we still end up drawing lines somewhere. Hacker News certainly draws the line on some speech, because of a desire to keep the site respectful and on topic.
For Covid, I think the reasonable standard acceptable to a majority of people is to ban intentional spread of conspiracy theories with clearly false facts that discourage people from being vaccinated, or putting harmful substances in their bodies to combat the virus, which are not medically approved.