Who do I talk to about an explanation of an infraction? I have tried PMing different moderators about other issues, but I have never been contacted again.
Best advice is just to forget about it. You should of received an email with details when you got the infraction and if I remember correctly it also says who issued it so maybe pm them and ask.
Maybe if you told us about your infraction we could explain it to you... or is it the kind of infraction you get when you did something terribly naughty?
i see you have one infraction for posting: when you read the rules / faq and forum stickies, you'll know why you got that.