Google is coming under scrutiny after people discovered transcripts of conversations with its AI chatbot are being indexed in search results.
You can replicate what others are seeing by typing ‘site:bard.google.com/share‘ into the Google Search bar.
I tried this out for myself, and as one example found a writer brainstorming story ideas and using her full name. It seems that when you hit "export/share" on Bard, while you might think only people with access to the link that's created can view the conversation, in fact Google makes the conversation public and searchable. This is far more problematic than the vague privacy threat of your prompts being used to train the models and later being spit back to some random person in a reply. This lets you read full conversations. AI in general has a privacy problem, but this is a good reason not to use Bard in particular (if it sucking wasn't enough reason for you)
The fact that you can use bangs in DDG is so powerful that I don't understand why not more people use it as their main search engine. The few times when it's not good enough just add the !g after your search (it doesn't even need to be before) and get redirected to Google.