A wet idea is when an information scientist demands to save the id of every user who alters data in a database. But where's the sense in this? If I know that any UPDATE or DELETE statement is tagged with my ID (btw: delete isn't possible any longer with this idea), of course I take another one's ID!
Seems that the core of this suggestions has to do with general ideas of surveillance. No wonder this suggestion is from England, where even the craziest paranoid stuff finds a platform. (Source)