Halo reach credit boosting?

Is being afk/idle in fire fight arcade considered cheating? I've heard some people say it is credit boosting and bungie could lower your rank or ban you all together. I have done it but so many other people I've seen or played with have done it too. I ask because it said on my profile that more people said 27% preferred you and 73% avoided you. A little while ago it was 50 and 50. If someone could clear this up I would appreciate it.
 
Back
Top