SolvedCD-Keys/ban Help plz..

Ok so i talked to a guy who sold cd keys. He said that they would be banned after 24 hours. Now i see this in a thread:

you got banned because you were hacking, probably doing something wrong or using a detected bybass
and tbh, if it was your only key, its very Silly to use hacks on your main Account xP
Also For everyone who talks about steam...... the game has nothing to do with bloody steam, like nothing at all, its just a release medium.
all you need to do is simply look at the arma 2 OA website for a list of Trusted sites to buy a retail key, or google buy arma 2 oa, and that shows up :P then you just buy the game and get the cd key and put it in your registry (and dont how to do that, there's already 10+ forum post's about it).

dont worry about steam.. dont worry about redownlaoding anything just download a key for oa and your set
And dont ever download that free version of arma 2.. if your starting from scratch download a torrent of Arma 2 Combined operations then switch the OA key for the legit one.
one would think that would be common knowledge/sense xP

If its not against the rules, could someone plz link me to where you could buy a key that wont get banned? I would preffer to get a new key instead of creating a new Steam acc. I dont really like changing between acc's. Also is it even possible? ;P All the people saying diffrent things confuse me... Also wouldnt it be cheaper just to buy it from steam considering its 50% off atm?

As far as I know Arma 2:OA is on sale on steam, you could make a new account and just use DayZ Commander to launch the game from now on and use Darkys Key Changer to change your old banned key to the newly purchased one from your new steam account by simply copy and pasting it from right clicking the game in steam and going to the "view cd key" option. If one of your steam accounts is global banned every time you try to launch the game it will revert you to the banned key. You by no means have to use steam to play.