It's not the first time this has happened, so I think it's more likely something broken rather than done on purpose.
The big question is if anyone will bother to fix it.
Yea, first time I experienced that issue I was confused and requested support, I was clarified it was part of maintenance, although it sounds more like something in maintenance went wrong.
I would not be shocked if they don't bother to fix it, given how the forums have gone south since the last announcement. At least one of the religious threads got locked out between last night and this morning, shame... was getting fun and even Arcanaville started taking part in it.
I ponder if they locked it all intentionally knowing things would get worse after the political debate :p
Got to admit, I would not objectively blame them if they keep them locked for a full week if not until the game goes down. If i was in their shoes, and had the
morals NCSoft has I would do my best to block players from organizing further protests (like the one I posted about one-star rating Guild Wars and Lineage 2 at amazon.com)