Sorry, I just came across this thread - it's tough for me to monitor all threads but I should have been on top of this one..
It appears that on Jan 20th, one of our service providers who provides security proxy services to us (Cloudflare) had a problem. We weren't aware of it, nor was a notified, but it is what it is.
Cloudflare has done, a questionable job if you will, in providing overall
services to us. We've seen these hickups more often than we would like. Our primary use Cloudflare is to protect the forums and wiki (only those two) from Spam and phishing attacks since they are enormous vectors for attack (open content edit driven). The RadioReference Forums rank up there as a top VBulletin site, and as such is actively targeted by spammers. If you could only see what our moderators have to deal with in terms of Spam, you wouldn't believe it, EVEN with enormous gates in place.
With that said, we are still evaluating Cloudflare as a viable protection, and if/when things change we'll let you know. We do know that they've done a decent job of protecting the forums from SPAM and malicious intent, but also have prevented legitiment users from accessing the forums without jumping through CAPTCHAs and other authentication mechanisms.
But also understand some of the stuff we face. There are thousands of people on the Internet that are paid to go through a registration process on a site, establish a legitiment account, and then Spam everyone with their Viagra drug ads when they are approved. We manage that by restricting all new members to requiring their first 3 posts in the forums to be approved before they can post without moderation. Guess what? Sometimes even that doesn't work - there are ways around that.
Anyway, thanks for everyone's patience. We're doing our best