The result of the last meso exploit (RIP lMira)

So instead of banning all the hackers using a map crash, Nexon decides to just ban all of MS for a meso exploit?

Also seems like they don't distinguish between good and bad mesos in the initial ban and the investigation after everyone is hellbanned. Just take out everyone who received mesos during these times. What about all the items that the hackers generate too? Those don't seem to get hit.