The PlayStation community will be switching over to a new platform during the next few weeks. Upgrades include an improved design, better community management with official PlayStation team moderators, microblogging and homepage personalization.
The PlayStation Community Team says the posts on the current forum will be still available to read and reply to. However, the move will enable the community to interact easier with each other and will be able to scale to support new additional members.
There is a thread on the community forum where you can give feedback to the PlayStation Community Team.