Since I haven't recieved a reply back from artists@animepunch.org in weeks, who can I send my artist alley table fee to? Or would it be easier just to bring it with me on Friday when I pick up my badge?
I personally checked the Artist email myself and none of the unreplied emails have to do with payment. Either you are not sending the email properly, or (much) more likely, our emails are ending up in your spam filter. Please adjust your settings so that this doesn't happen.
Anyhow, so that you arn't left hanging, I think it would be ok to pay at-con at this point.