One thing that should be a top level programming command, right there along the same required skill level as #grid-null-sic-id is something along the lines of #grid-sic-id-verify. Or, otherwise something that traces a SIC ID back to the known grid accounts that that SIC ID is associated with. Meaning, if a grid account has had it's SIC ID nulled out, it's no longer possible to discover with this command.
And, with all of my ideas, I'd love for there to be countermeasures. So, if User ICE becomes a thing in some variety, it should prevent this command from functioning anyway. Thus, we propagate the idea of Decker vs Decker content.
BAKALAKA