The problem is that the Plusnet community forums are fairly active. I've just looked and it is showing over 60 active users online at present, I'm guessing at around 200 posts a day. There is no restriction such as the first few posts for new users requiring moderation. To look after this there are only THREE moderators. There have been more in the past (it has not been as low as this in the 15 years or so I've been on the Plusnet forums), when previous moderators have resigned they have not been replaced.
These three are guys who voluntarily moderate the forums in their spare time - not surprising situations sometimes get out of control before a moderator steps in.
AAISP November 2016
(Previous ISP Plusnet November 2001 to October 2016) Why I left Plusnet
Telephone rental: Pulse8