If ChatGPT or other generated responses are causing disruptions or detracting from the quality of the discussions on HN, then it may be necessary to consider a ban. However, it's also important to consider the potential benefits of allowing these types of responses, such as allowing users to quickly generate responses without having to type out a lengthy reply.
Ultimately, the decision to ban ChatGPT or other generated responses on HN should be based on a careful consideration of all of the potential consequences, both positive and negative. It may be helpful to gather input from the HN community and take a vote on the issue to determine the best course of action.