Thanks for the info! I've tried incognito, using a different device, resetting my router. Following that blacklist check, turns out I am on one blacklist for some reason. I've requested to be removed and asked them to let me know why I'm suddenly on the list in the first place, now I guess I wait. When I thought it was only Reddit, that was fine because Reddit isn't Reddit anymore anyway. But finding that you're blocked by a whole lot of web pages is kinda depressing. I mean, I ended up following the chain all the way to Reddit's registrar (gandi.net) and I'm blocked by all of them, registrar included. Same thing with anything to do with CDC Global. Thanks again for the info, hope that this is sorted out easily.
Ug. The RBL is tough to get off of, because you have to prove yourself a "good actor". You probably got RBL'd because of a virus on your computer, a computer on your connection that has been hacked/virused and is sending out spam, or a higher-level issue with your ISP. Good luck diagnosing that one, but check with your ISP first. They may know about the issue, and be acting to fix it.
Do you have any suggestions of a tool to use to check if I've been infected? I'm currently using Malwarebytes, which tells me that my system is clean as a whistle but maybe it's missing something. Besides that, I reinstall OSes so often on my PC that I'm not sure if it would even be my PC. Would a mobile phone be capable of wreaking this havoc? I have been removed from the blacklist that I was on for 48 hours while they investigate (as per their protocol) and it hasn't made a difference to my browsing whatsoever, I'm still coming across more and more websites that I can only access with proxy, the latest being the NYTimes. I guess if all else fails then I have no option but to contact my ISP but I'm moving in a month and hoping to change to another provider while I'm at it so maybe I'll just leave it for the next poor sucker :P
There are more than one blacklist out there, and they feed off of each other. So getting listed on one means that - over the next day or so - you will get listed on 20 of them. Getting de-listed involves generally going through the dispute process on every individual blacklist. Anyway, it isn't your machine. It's your ISP that has been compromised. There was probably a PC that got infected in your IP range and was spamming as a part of a botnet while the owner of the PC was at work, or whatever, and so every IP in that mask was blocked at the ISP level. Still, the power is in your ISP's hands. An individual protesting an RBL listing is mostly going to be ineffective, because they block whole subnets, not usually individual IP addresses. Check with your ISP and ask them whats up.
Thanks for all the help. I seem to be unblocked from everything right now. Not sure how long it will last but hopefully it's an issue that my ISP has sorted out by themselves without needing to be pushed into motion like they normally do. I hope this lasts. Thanks again, dude.