Lets just flood it, with tons of markets, almost all of them crappy, but all of them technically working, and legit. Make the feds really work for it. A market for everyone, thousands of markets, everywhere.
This is the future of opsec.
edit: This was meant to be humourous, but after thinking about it, if there were more markets on AB/Hansa level, like 25 solid markets, ideally much more, it might be a good thing. More work for vendors though, but if there are tons of diffferent marekts out there at once, and they are all active, instead of just one or two, LEO wouldn't know where to begin.
Or they would be jizzing in their pants planning the largest multi-national multi-target coordinated simultaneous takedown in history.