Yup, definitely still gameable but if the model learns what high quality content is like and what high quality webpages there are (which it does), then the only way to game would be to be great :)
For your search - I would recommend turning autoprompt off and searching something like "Here is a great summary of the best computer mice to use:".
Our embeddings model is trained on how links are talked about on the Internet, if that helps with querying. So you have to query like how someone would refer to a link before sharing it