Board Thread:Site Questions/@comment-37163551-20190910110649/@comment-24101790-20190910122024

The message you posted actually did appear so it might be an issue with your phone not displaying messages, you didn't scroll to the bottom/use the title feature to make your text easily locatable, or someone could have tried to leave a message at the same time and resulted in a conflicting edit where your post didn't go through.

As for tildes (~), those are how you sign your name at the end of your messages (four tildes).