i hope its not that easy! If thats the case theres some people at the AC forums id like to see banned...
now if they show AC an article thats in the submission process or even worse, one thats being published in the next few days....probably a dead giveaway.
Here's an idea... keep a low profile over at the AC forums if you think that may be the source of the problem. You should keep a low profile there anyways maybe?
To be honest, I'm not so sure it was the actual writer in this case. If one of the cackling hens complain to AC that they "think" you're hiring writers and doing rewrites, this is what can happen. Those nutjobs pride themselves on it.