have you also had this from the Blog UK support team?
‘We have decided to revise our policy of blocking IPs as a spam prevention
As well as frequently resulting in valid users of our platform being
inadvertently blocked, we have also observed that it does not result in a
significant downturn in the amount of spam. This is because it is a very
simple matter for the spammer to simply access our domain from a different IP.
For these reasons, we will no longer block IPs unless they are being used for
very heavy spamming.
While we work on an alternative solution to the issue, we recommend that you
activate comment moderation so that the spam comments do not arrive on your
If spam comments are made by a registered user, please continue to bring them
to our attention by flagging their profile and/or mailing us at this address
with the username.
blog.co.uk Customer Support’