HIVE is my main social media nowadays. Did you know you can sign into your wallet using your memo key to read encrypted messages? It's bee a while since I last used the feature, so you get to be a guinea pig while I try. If I send it properly, you will see gibberish unless you use the right key to decrypt it.
EDIT
Sign in with your memo key to send encrypted messages with wallet transfers. Ise a pound sign at the start of your message to signal it should be encrypted.
#It needs to look like this
And if done properly, your message will be encoded as a string of seemingly random characters. Sign into your wallet with your memo key to read encrypted transaction memos. I suggest using an incognito tab and copy/pasting your saved memo password for this.