Sure, but how information is used is distinct from how it is gathered. A cop who sees you on the street shooting a guy should be able to arrest you, a cop who sees you on the street wearing a MAGA hat should not, but cops shouldn't be stopped from being able to see because of fear of the latter- the problem with a MAGA hat arrest is the reasoning behind the arrest, not that the cop wasn't blindfolded. And twitter posts are if anything MORE public than what you do walking down the street.
Sure, but how information is used is distinct from how it is gathered. A cop who sees you on the street shooting a guy should be able to arrest you, a cop who sees you on the street wearing a MAGA hat should not, but cops shouldn't be stopped from being able to see because of fear of the latter- the problem with a MAGA hat arrest is the reasoning behind the arrest, not that the cop wasn't blindfolded. And twitter posts are if anything MORE public than what you do walking down the street.