Examples of good dating ads
Buyers and sellers know at a glance that you're trustworthy.
If they want to be sure, they can read each comment written about you.
Less than one in 500 online personal ad users finds a partner. Personal ads are, in general, a poor way to find a mate.
E.g., an incarcerated woman could write that she committed a crime when she was immature, but prison has helped her grow and now she's sorry for what she'd done.
This leads to asking about the crime, what prison has taught her, etc. Disclose an unattractive feature in a way that shows your good character.
Hiding something unattractive about yourself might increase the number of responses to your personal ad, but these relationships will end-fast-when the individuals discover the truth.
Potential partners will see you as having a bad character in addition to having an unattractive feature.