DrDamn Filtering is a risky manoeuvre and barely mentioned in the highway code. The highway code is about safety, so it should be outright banned rather than being left to the dubious decision of impatient 2-wheeled road users.
The IDs on scooters are far too small to be read in traffic situations - compare that with the legal requirement of car and motorbike plates which must be a specific size, typeface and illuminated at night. The illegal private one probably have no markings and could easily be covered without anyone noticing. Police number-plate recognition systems won’t work on e-scooters. And bikes have no IDs whatsoever (nor horses, though they could branded 😉).
Agree with the mailshot though - they could send it out with the driving licence renewals