I sent my PXI coins to the askcoin exchange and it's been 3 days that my coins didnt arrived to my account, did this exchange still active or absolutely scam?
Just an update to your question.
They found out who owns askcoin exchange, with contact information...
Don't trade on this site, until they have no more issues. I'm also taking down there trading bot.
https://bitcointalk.org/index.php?topic=737170.20