On dating sites, my pdoc said not to mention that outright but I always feel its best to be open about it first so that you know if they are accepting of it or not.
it might attract the wrong kind of people, usually if you announce you have mental illness it attracts others with similar mental illness and not all of them are stable. just a thought. For example my partner told an old boss of hers that I have schizoaffective disorder and her boss’s son has schizophrenia. They thought we could become friends so they tried to set up a friendly get together. He tried to take me into a bar, I refuse to drink.