There are other websites to discuss phpBB2, but the phpBB Group gave users almost a year to make a decision about whether to stay with phpBB2 or move to phpBB3, and it was also stated that support would end. The topic is part of phpBB2 support, and is therefore locked.
As phpBB 2 is not supported anymore, there isn't much point in keeping that topic open.
The information is still there and can be viewed by anyone.
Also, as per Michael. Closing this topic also, I'm sure you'll understand why