My background/job is in computer networks, so I try and keep up with what is going on and came across the article above(and substantial others similar). I was never really a fan of them personally, I feel they are a bunch of malcontents. While behind their anonymity they are the biggest bad asses the interweb has ever seen, then when they are caught they become an elephant in a room full of mice(See Jake Davis).
Its one thing for them to "go after" a civilized country's IP, as the results and coincidences of doing so will just be jail for you and your accomplices. When you "decide" to wage war on a drug cartel you enter a whole other realm. Those mother fuckers do not play. They will wipe out a town if they are uncooperative. I believe last year the body count alone was 30k. If the "kids" in anon, lulzsec or whatever subgroup think that they will be safe dropping names and screwing with drug lords money they are idiots. Information Week reached out to an intelligence research firm that said basically anyone they name will be killed if they have ties to the organization. What Anonymous fails to realize is a vast majority of these people are forced to help. If they dont them, their family, and anyone close to them can be killed.
What these "hackers" don't understand and it really is a common misconception; is they veiw these cartels as being just muscle and no brains. Make no mistakes about them, they are : well financed, well equipped, and have access to information via bribes or threats.
There are probably only a dozen or so true "hackers" in their group(s?). The rest are script kiddies or use GUI programs. What is going to happen is if they go this route they are going to get a bunch of people(a majority of innocents) killed. They are going to put themselves and their families at risk. They think that being in the US,Canada,Europe that they are safe; they are sadly mistaken.
I cant fault them for wanting to go after people who are inherently bad, but they really need to think something like this out more especially in dealing with the consequences which will definitely be there.