> Nobody cares about you

This is such a low-iq argument I cannot even. Yes, nobody cares about OP, you, me, whatever - until they do. Not to mention general harvesting for profiling and propaganda reasons.

General: What do people in this city/country/region/etc are thinking - This is the main one where the data is used and collected, then grouped. It is extremely powerful information for targeted agenda whichever it might be.

Targeted: Oh, you or someone from your close ones went to a political protest? Too bad we have all this information to put you and your family in jail - This is where suddenly they will care about you, even when it is NOT YOU but someone from your close circles were the ones upsetting them.