(deliberately?) stupid meters
Apart from the reasons discussed already (1: being switched off remotely, either for "load-shaping" by your supplier, or "cyberattack" by anyone else.. 2: having my data slurped and sold to any and all interested parties 3: being locked into a particular supplier 4: being made to pay a variable rate depending on the suppliers's ability to supply...)
The other reason I hate smart meters, and would never consensually have one installed, is that I don't trust them to read accurately.
The old electromagnetic meters read "true RMS" by virtue of a magnetic force acting on a spinning disc -the moment of inertia of the disc will ultimately average out any transients.
Smart Meters on the other hand, are purely electronic, and don't necessarily read True RMS (because they employ discrete sampling).
There was a huge fiasco last year with Smart Meters over-reading. I don't know how much of it has been fixed now, and which meters are OK..
They would sample only at the peak of the mains voltage sine-wave. This is a problem for any device whose front-end component is a bridge rectifier (this includes most LED lights, most laptop power supplies, and cheaper desktop power supplies without PFC).
Current only flows through the diode bridge when the mains voltage is higher than the DC capacitor voltage, and that only happens at the peak of the mains waveform. But the "smart" meter would sample the peak current, and assume that it was sinusoidal and in-phase with the voltage. But in reality, the current at everywhere else but the sampling point, is near zero.
Thus, smart meters would over-read by several times for LED lighting in particular.
see: https://www.theregister.co.uk/2017/03/06/smart_meters_prove_dim/
Biting the hand that feeds IT
