For a law to cover the set of data which is not necessary to exercise free speech would infringe on free speech, because the set and its complement are not disc

For a law to cover the set of data which is not necessary to exercise free speech would infringe on free speech, because the set and its complement are not disconnected sets. So either the company has stay on the safe side, and delete information necessary for it to exercise free speech, or miss the other way and be subject to penalties. The example I gave, by the way, is a real one: https://news.ycombinator.com/item?id=8418885 https://news.ycombinator.com/item?id=8418885