Hello everyone, I'm new here, I made a new topic and new post, but they have been missed, does anyone know why?
Thanks in advance for your help, (If this one is not lost too, of course)

Topics are often deleted without notification.
For posts, if the topic is deleted, you will not get a notification.
It is best that you read the forum rules --->
https://bitcointalk.org/index.php?topic=703657.0 for more details.
Try to create good quality topics, stop spamming and it will not be deleted.