Stratfor says that most of Anon's information is on people who are being extorted by a cartel, and when the info is released, these poor people will be murdered by competing cartels.
Basically it's not the cartel bosses and soldiers who are going to die when Anon releases this information. It's the people they extort like Taxi drivers and business owners.
Doesn't it also mean that every person who has been extorted rather than is a part of the group will fear for their life? Doesn't that make them more likely to talk to law enforcement and tell everything they know in exchange for protection, knowing they can get killed if they're outed and are free?
Like responded to sibling. Run away, get caught, hope that border guards you find are not paid by the same people. Alternatively walk into the biggest place you can find crowded with enough police people that even the corrupted one wouldn't be sure they can act as they want and claim you've got information and need protection (of course not knowing the situation well, I'm not sure how reasonable the second way is)
It's still a widespread constituency that the cartel has to listen to -- they are in many ways their paying customers, and if all their paying customers run to competing cartels, they have a problem. I'm sure they will be reminded of this every time they "collect"; in very soft tones of course, but still.
Basically it's not the cartel bosses and soldiers who are going to die when Anon releases this information. It's the people they extort like Taxi drivers and business owners.