Allow me please to play devils advocate, an incident occurs with a drone flight to interrupt traffic into in this case Coningsby, severely restricting the ability of the QRF ( quick reaction force ) and any other aircraft to fly out of or into the base.
The current situation is such that any attempt to try discover who it may have been will elicit the following from those who live near clubs or areas where people fly and who do not like or appreciate the hobby ( I can think of at least two people in close proximity to a nearby club)
"Well officer Joe Blogs from down the fen has one of those infernal machines and I have seen him flying irresponsibly in the past, he shouts at me when I try to talk to him, becomes abusive and belligerent if I walk onto the field where he flies and is generally a nasty piece of work, I saw him flying just yesterday and I am sure his model was over Coningsby way." Says Mr Ranter
Poor old Joe gets a visit from Mr Plod who seizes his seven model aircraft, damaging at least three beyond repair, stuffs Mr Blogs cuffed into the back of the car, Mr Blogs has now become highly abusive and is using threats and extreme language with the officers.
Joe waves his membership card about prior to been cuffed but as Mr Plod has no idea what it's relevance is he fails to attempt to contact the BMFA or as Mr Plod in this case is a bit slow phones the BBMF at Coningsby who reliably inform him that they do not give out membership cards nor know who Mr Blogs is.
Now let's move on after registration is required, the same situation arises, Mr Plod now contacts the CAA, Mr Blogs is registered, all his models have appropriate information on them, immediately Mr Blogs moves to the bottom of the suspect list.
Mr Plod can now move his enquiry on and look into the very complainant who Mr Doe from next door informs the police has some sort of device which seems to be like a UFO, has six or eight fans attached and has flashing lights, oh and wasn't he just the other day complaining about the terrible noise the jets made but he had a way to kill two birds with one stone.
Mr Plod calls the CAA and they confirm they have never heard of nor has Mr ranter ever registered with them, a few hours later Mr Ranter and his multirotor craft are loaded into Mr Plods car for a bit of in depth questioning down at the station.
Yes it's a pain to register, yes its too much and a knee jerk reaction, but if it stops one such incident, one terrorist or stops one potential crash then it is worth it, we have to accept the possibilities of our planes being used as weapons.