Thinking that you can make the situation better by reporting people without reason is stupid.
No... I think whether I report or not it doesn't make a difference to chess.com. It only makes a difference to me. I'll be able to increase my rating a little that way.
Also, I don't believe I get any special treatment because of my rating or membership or etc.
Besides if everybody would do what you are recomend the report for cheating would lose any sence.
Right. If everyone did it then they'd have to remove the report button.
But you can use that argument for lots of things... if everyone regularly ate fruit to be more healthy, then there'd be a world wide shortage of fruit and some business would go bankrupt (for example if people ate fruit instead of meat) and lots of people would lose their jobs etc.