1. Girls friendzoning guys for their benefit.
  2. Sexism faced by men.
  3. Using girls for sex (Both paid and out of fake love).
  4. Trying to make Quora another FB.
  5. Preaching A and practicing B.
  6. Fake ‘candle march’ sympathy on social media.
  7. Fake social media activism.
  8. Fake respect/love quotes (for parents) sharing on social media and neglecting same parents back home.
  9. Strategic fake friendships which are facebook on face and linkedin on back.
  10. Dishonesty both financially and in relationship.

Source: Hemant Pandey’s answer to What human traits/behavior you dislike the most? – Quora