They're better than speed stops.

Having been pulled over a few times, and received a few mail tickets, the latter make a lot more sense.

When I get pulled over, there's always a bit of menace. I've had K-9s sniff around my car while the officer admires toys attached to it. In the US, there are swaths where any roads off the interstates are basically bandit territory if you have out-of-state plates and/or the wrong colored skin.

When I get a ticket in the mail, I can choose to pay or contest it with a level head. Often the mail tickets include links to a video, which can be hilarious if you register your vehicle to a family address.

But modern traffic stops are an embarrassing blight on the nation, especially considering our civil forfeiture laws. If you're in the US, pray that you get a state trooper.

Many states, where speed cameras are illegal, disagree.

[citation needed]

I've been fined a few times. I eventually figured out that if you don't speed you don't get fines :)

Speed limits are generally too low.. this is the problem.

Or roads are badly designed, in a way that their psychological speed limit is higher than what is indicated. But the lower limit can have more reasons, such as noise pollution near a residential area, or pedestrian safety.

Speed limits are defined on population density, to get a wavier for a well designed road just isn’t worth the cost.

There are a lot of dumb laws, including speed limits, that need someone other than a lawyer to opine on. Unfortunately it has all become a spectacle.