I know sometimes mods lock threads at their own discression, especially at boards where they are a local moderator. At least when s thread gets moved there's some forum notice being posted. But for locking a topic there's nothing to signify it was a moderator action.
I just think it would be a nice courtesy if mods would just add a post before locking a topic to justify why they felt it should be locked. It's good to put this info on the record for future reference. And also from what I understand, since the OP can unlock a topic locked by a mod, a post by the staff member that took the action would prevent misunderstandings.
You raised a very good point and I hope I am not yet late for the party. I also read what so many people wrote here which now makes me confused about whether moderators have the right to lock and unlock a thread or not, which is against what I believed initially, and I know that many also believed that moderators have that power as well and not only the admin.
Regardless, just like what PowerGlove pointed out
like this[/u]]here[/url], any action made by any moderate or any high ranking persons on the forum who can do what other ordinary members can't do should not just be but also the reason for the action.
This is not only to allege/sanction the users but also for such users to know and avoid it next time. Some actions could be confusing at times, so what use is it if the person redo it if he didn't know what was wrong with the initial one?