I had one guy that purchased a chair from me and after the meeting he messaged me saying, "thanks for the chair you were very cutie". That is very disturbing and creepy. Offer up is purely business. If you are looking for dates, they already have apps for that. Tinder etc. etc. I reported and blocked him ASAP.
@Jasmin14 your right that’s really creepy! you totally did the right thing reporting this creep to OfferUp they will definitely investigate this freak and take appropriate action, and hopefully show him the door.