Just to clarify - do you mean that you've had the conversations on this playthrough, while using the cheat? If so, then apparently it does not interfere with the banter. If not, then by 10 hours of playing, I'd expect there to have been some party banter at least.
There are "trigger points" where party banter is most likely to happen, so maybe you can test it by walking through one of those points. A couple that I remember off the top of my head are on the little bridge in the middle of the town in Lothering, and on the bridge to the provings arena in Orzammar. Oh, and in Redcliffe, going over the little bridge that takes you past the smithy away from the chantry also often triggers a conversation.