Only just seen this Sass. Len told me over the past couple of days that people do not take themselves seriously and it is banter (my paraphrase), so it appears I have been overreacting. I'll stay out of it in future.
No! Leonard like other atheists... insult someone and then tell others they are only joking.
The atheists are very serious they just pretend they are joking so the can insult others whilst telling the world it is a joke.
So it does what you saw it do.
You saw it as insults... they know it is an insult... but they say it not meant so it remains for everyone to see.