+ Arma was never created as a game dominated by public servers. Up untill the DayZ wave almost 95% of all Arma servers were either passworded or whitelisted and run by communities.
DayZ brought the "open architecture" in Arma out into the light and created the perfect place for hackers to earn money on skiddies. Thats gonna chance dramaticly in SA as the entire game is being developed around "MMO Architecture", which basicly means clients are allowed to do near nothing, it pretty much only recieves data, converts it to the propper output for monitor and sounds and what ever is connected and then send data back to the main server. It doesnt run any scripts or codes that the server doesnt allow.
In Arma its the complete opposite

Thats why its so damn difficult to prevent people from "using the game as intended" in times that its not intended if you get it heh.
BE will improve over time, but they were never prepared for this at all. It was a giant invasion of skiddies and it completely cribbled the game. In SA the coding is very different, so the hackers needs to learn it all over again, and not just adapt it abit, like with Arma 3 for example.
I hope it clears somethings and explains why SA will not be moddable like we know it, maybe not even at all.
And why Arma 3 is infected with skiddies before the game even "began"
