I havent spoken to those operating this network alert for some weeks now but I was told that some host file users are not seeing this message due to being secondary, thus the message was made visible to all users, I think if folks havent got the message by now they wont ever do so.
I,ll speak to those involved App and get this alert halted, its done its job I think.
[update] The network messaging system is offline now and wont be back unless theres something very very important folks need to know, if in doubt about any strange messages always visit this site or one of the other community patch partners for up to date information.