Requires registering for an account - By registering for an account, the AI companies are able to record your conversations with AI.
Uses your interactions for training - By registering for an account, you are agreeing to allow your conversations to be used for training.
Records what you type - AI (or more specifically, the companies that own the AI) record what you type. Be conscious of the information you are giving. Refrain from typing personal or confidential information.
Potentially uses materials under copyright - "Potentially" because we do not know how the systems are trained. There are currently lawsuits being brought against companies for copyright infringement.
Some services have a fee - While some services are free, there are others that require a subscription. This sets up the possibility of economic inequality.
Unknown biases - Because we do not know how the systems are trained, we do not know what biases exist, but they most likely exist.
Developing in unexpected ways - As AI progresses, it is developing in ways designed did not expect. So far this has merely been a point of interest, but we do not know what could happen in the future.
Who owns the output? - OpenAi, the creator of ChatGPT, states that the user owns the output of their discussions, but this has not been tried in a court of law, and there are some who question the ownership.