This answer from an interview of Jon Acuff (author of Stuff Christians Like) by Brian Allain caught my attention:
"6. In your opinion, how is humor different from sarcasm/cynicism?
"JA: Humor pokes at ideas and issues, sarcasm pokes at individuals and cynicism pokes at hope. Humor reflects, sarcasm mocks and cynicism attacks. I fail at this constantly but I try to stay on humor’s team."
Earl Palmer talks about negative humor, including humor that diminishes.
"The role of humor in this case is to diminish worth through ridicule and once that emptying has happened a climate of permission to do harm is put into place."
For someone who pokes fun a lot, its good for me to revisit such notions.
Just my thoughts,