False bannings galore.

Not sure if [URL=http://maplestory.nexon.net/Community/#%2Fshowthread.php%3F734881-Tips-How-to-avoid-getting-banned"]this[/URL] was posted anywhere yet, This seems like the best thread to put it in.

My opinion, (Big wall of text)

 Spoiler

1. Benefiting from hackers
What does that mean?
It means leeching from a hacker, training in a map that has been "glitched" to have more mobs, looting from a hacker and kill stealing a hacker. No glitched maps? Does that mean I can't train at LHC at all because most of the maps are glitched?

If you have done any of the following, you are at risk of getting banned.

What can I do to avoid it?
1. Do not train in a map that has visibly more mobs than another map; Right, don't train at LHC then.
2. Do not "AFK" while in a map (namely Lionking Castle or Stronghold), the leader of the party can (and probably will) invite a hacker into the party to go faster; What if I have to change my baby or I need to go to the bathroom? That's kind of stupid telling someone "not to afk" or you have the chance to be banned.
3. Do not knowingly train in a map that has a hacker in it; What if the hacker kses me? Am I shit out of luck?
4. If you see a hacker in a map, "vac hacking", do not kill steal their mobs; Obvious
5. If you see a hacker in a map, "vac hacking", do not pick up their drops; Obvious
6. Do not buy hacked items. PLEASE inform yourselves before buying an item that you might think is all right to buy. For example, any Cash Shop items, always be careful when buying those. Any item can be duped, godly or not, there's no indication that something can be duped (it probably is for most items in the FM. 99% of the godly items are made by duped scrolls, or are duped themselves)

2. Foul language
I think this one speaks for itself.
The Game Masters have been getting stricter about the language in-game. We encourage the players to keep a clean language as to not disrupt and/or offend other players. Obvious

3. Merchandising
Selling/buying Nexon Cash with mesos (or vice versa) has always been against the Terms of Use. It is no wonder that you might get banned from this.
To avoid this, we suggest not to participate in an exchange of Nexon Cash for mesos or mesos for Nexon Cash. Again, obvious but everyone does it. They ban one person for this, they're going to ban 60% of the game.

This also includes selling in-game items for real money or Nexon Cash or, again, vice versa. As well as account selling.

Bold added by me.
Tldr; Hackers win.