A wrecking yard in space for salvagable parts. Brilliant! ISS must have tons and tons of useful parts.

After a bit more research it seems Lunar L1, L2 and L3 are not perfectly stable locations and would require very minimal but still non zero amount of velocity to maintain position. The ISS has thrusters and if fully tanked up an AI could maintain it in L1 position for decades. Also if necessary it could ultimately be moved to Lunar L4 or L5 which are much more stable locations.

I'd like to know the approximate size of these Lunar Lagrange points. Are we talking about a football field or 100 square miles?

Another idea, send it out to do a soft landing on a very low gravity body like Phobos or an NEA. Something that would already be considered a place for future human exploration.