All I can say to most of the above is what a load of bull. This is so typical of the misinformed scaremongering around smart meters.
A smart meter cannot 'tell' what type of load is on the metered circuit. The metering element of a smart meter is no different to that of a heritage meter. The 'smart' part is that it is capable of communicating your usage data back to the energy supplier. It maintains a record of your usage history and displays that on your 'in home display unit' so that you can track your usage and make changes in usage if you choose to.
Let's be realistic, the meter is connected to your incoming supply , it is monitoring the whole of your property BEFORE your consumer unit, so within that property there will be a mixture of resistive and inductive load.
As to changes in charges dependent on time of day, that would have to be declared in your T&C's for particular tariff.
Smart meters are smart for both the customer and the supplier. This is not the thin end of the 'Big brother' wedge
Using VFD's has no bearing on whether or not you have a smart meter, I have both and have no issues before or after the Smart installation.
I work in the energy supply sector and and very closely involved with the smart meter rollout so if anyone wants clarification please ask, I will give chapter and verse but be assured, smart meters are NOT a 'spy in the cab' , they are designed to assist everyone in monitoring and optimising their energy usage.