I also think it would be nice to send a DM to the user who started the thread to give a reason for locking or even moving a post, because sometimes let's say when you have a number of post and you think you have covered the post count for the week and all of a sudden you find out that some post have been deleted or moved to off-top and you have no one to give the specific reason for that action, (this only happens to sig members) which ever way it happens both moving of topics deleting of post and locking of post or thread I think mods should at least DM the members why they took that action.
So if a mod moves or deletes a topic where 50 people have posted, he'll have to send 50 PMs ? Really ?? And also send a bouquet of flowers or a box of chocolate to apologise too I presume?
I'm going to be direct, I (as usual I'm speaking for myself, but I'm sure my colleagues are on the same page) don't give a damn about the post count when I delete/move a post/topic. There are no rules, no instructions from Theymos on this subject. Before clicking on the 'Post' button, it's up to you to decide whether the topic has a chance of being moved/deleted or not.
I agree on the general sentiment. The forum mods don't have an obligation towards someone's post count and it shouldn't be considered their liability when they're simply following standard moderation practices.
But we have to agree that a notification for having one of your posts deleted would be a nice feature. By way of not having it bitcointalk lacks a feature many other social platforms would have as standard. By this point it might be wishful thinking to hope such feature gets implemented but one can only hope.