John, yes I did do them. The ads come with the free site, unfortunately. They pop up less if you use IE with stricter security settings. When you use netscape, it just goes nuts.
Anyway, to the parking tickets. There's the problem: How to determine who is harmed.
Say you have public parking at a meter. A driver parks for two hours. Meter's up. He doesn't pay. He doesn't move. He just sits there and parks.
Do you:
A) Fine him
or
B) Not fine him, letting him sit there as long as he wants - no punishment = no change in actions
Say you are driving to the courthouse because you have to pay a jaywalking ticket (which I certainly agree is one of the stupidest tickets police can give out). You go to park but find all the spaces are full - the parking scofflaws are permanently camped there during business hours - because it's cheaper than the $15/day parking garage across the street. Why is it cheaper? Because they park there and never pay, and they never pay because there's no fine.
Now you're left without a place to park, because all the street parking is taken up. You drive to the parking garage and pay your $15. You are harmed - you had to pay an excess amount because someone has broken the law (and doesn't get punished for it).
Now we get to the harm part. If the police policy were to only issue tickets when they received an actual complaint, you could then call them. They could come out and issue the fine - while you But what about the other people, who instead of calling, just paid for the garage parking? Or didn't call because they didn't have the time to waste while the police responded (remember, we have to have an actually harm connection established). Or maybe they parked a mile away and had to walk because of the jerk that thought it was his right to park however he pleases. Or maybe they just didn't even bother stopping, instead having to come back another day - they made a wasted trip.
All those people would have been cause some type of harm. But without calling, the police wouldn't have known of the direct harm. Instead, we have the government regularly check for parking infractions, to prevent these unreported harms from happening in the first place. They issue a fine to get the jerks incentive not to be jerks.