Censoring

Line • Due MAR 14 - 2018 Storm born DEC 24 - 2015
When a topic is deleted it feels like right out Censoring of content. Isn't it possible to leave a reason why it was deleted?
I have a lot of notifications pointing to 'null' topics: 'USER replied to your comment' I click this and it goes to ... something and just keeps trying to load the topic. I then go to my recent activity and see that some of what I've been commenting on is gone.
There must be a better way of closing down discussions.
Thank you :)