I think anonymity and pseudo-anonymity still have a place and contribute a lot to discussion quality. So do people posting under their real names. We don't know how this is all going to play out yet.
One risk is that bot-generated contributions drown out human-generated content, both due to speed with which they can be crafted as well as “quality”. I put quality in quotes because in human debate there’s a learning process and so while an individual contribution might be “lower quality” than another, the overall discussion quality and learning quality (for both contributor and readers) can be high.
Put differently, just because all the individual contributions are of high quality does not mean the “thread quality” is high.