I honestly don't know how many folks I had who basically msged me for a few days saying they're getting back to me asap and this and that (on their own, not me asking them to) and then just ghosts me without even any courtesy message. It's so annoying so I just learn to delete all msgs until you msg me back so I don't wait for anyone no more.
Even had one couple tell me 10 minutes before a showing they weren't coming because one of the people were stuck in a meeting. I think, ok that is fine. Then they said they had a change of heart and decided to stay in their current rental. Lmao, and I confirmed with them 2 hours before if we were still good to meet.