They're certainly treated as public transport by the authorities, but they're just a hire car that comes with a driver. It probably made sense at some point, but strikes me as anomalous now.
You're probably right that being so distinctive makes the bad ones stand out, and having lived in the West End and now in Whitechapel (so destination and route in, respectively) I've probably been over-exposed to them.
They're certainly treated as public transport by the authorities, but they're just a hire car that comes with a driver. It probably made sense at some point, but strikes me as anomalous now.
You're probably right that being so distinctive makes the bad ones stand out, and having lived in the West End and now in Whitechapel (so destination and route in, respectively) I've probably been over-exposed to them.