Should I be closing shops?

Definitely a type of item generator.

No-boom AEE's, Nebs, and Unique Potential scrolls are deflating drastically.

Also, hits the nail on the head for how nexon handles these types of things:

Thank you for using a quote of mine.

Here's someone selling something and admitting to selling something: http://oi43.tinypic.com/mu7mtf.jpg
Here's his shop: http://oi39.tinypic.com/205ebdf.jpg
Here's what the Odd Quantities of AEE No Booms, Boss Damage Nebulites and Unique Potential Scrolls FM Room looked like: http://oi44.tinypic.com/vddc9s.jpg
Here's a store belonging to someone who sold odd amounts of scrolls and nebulites: http://oi43.tinypic.com/s4qsch.jpg
Here are some more stores that sold odd amounts of scrolls and nebulites: http://oi43.tinypic.com/m7842g.jpg
Here's another seller who sold something: http://oi42.tinypic.com/2akh643.jpg

There was a smega showing part of how they did it. I'll send that to Maryse too.

So yeah, I'd say close up shop if you're selling Advanced Equip Enhancements (No destroy), Boss Damage 25% nebulites, Chaos Scrolls of Goodness 50% and Clean Slate scrolls 20%.