Is there an automatic user deletion process active in this forum?

[Ernst Fueloep]

My monthly post to prevent my user to be pruned away.

And reading the latest posts I agree to remove this unnecessary pruning function of the forum.
As I have said earlier I am a member of several different forums. And nowhere was I pruned because I did not post in a certain timeframe.
Why does the forum owner want to have this pruning of users active?
I really don't see a valid reason for this.