"I do this through feedback with the people who I am chating with on IRC" would sound better as: "I do this through feedback with the people whom I am chatting with on IRC"

Alternatively you could just omit the whom altogether but I am less certain about that as I am not a native speaker either.

If you want to know more about who vs whom: http://www.quickanddirtytips.com/education/grammar/who-versu...