Just a completely mad idea:
ID as an indestructible hardpoint. Give all ships a heavy negative hull regen and have each ID heal the same amount per second. those bloody no IDers wouldn't know what hit them... Then give the ID an ability e.g. Police ID: long range tradelane disruption cannon, smuggler ID: disguise as trader ID for 30 seconds and cloaks cargo hold, making it appear empty, Lane hacker ID: when used near a tradelane, becomes able to "see" all comms traffic for 10 seconds. I could go on, but I doubt any of these would work anyway.