OK, I don't know. Did you try just visiting some random reddit website from the remote browser I provided?
edit: I just tried again on a fresh CloudTabs browser and I could successfully create an account and sign in to reddit. So this does work!
What did you try? I think it might matter how you arrive at reddit. Try going through the address bar search to a sub you like, rather than pasting in a direct "login to reddit" URL. Idk for sure, but that might be more sus to their systems haha! :)
You need to click through a Captcha (at least I did ~ first time I got 1 "bicycle", this time I got 1 "motorbikes" and 1 "stairs").
Perhaps they adapt their IP blocking, this demo only uses 4 IPs globally. Maybe if we push too many users through there, they'll block anyway?? Idk.
Anyway, I just tested after your comment and it worked so we'll need to discover what happened for you.