That would surprise me. Companies like Akamai maintain very up-to-date lists of Tor exit nodes, commercial VPN exit nodes, etc. My employer uses Akamai and blocks all traffic from Tor given the huge volume of malicious traffic coming from it. It would be trivial for us to block VPN traffic as well if we wanted to. Those blocks occur on Akamai’s systems before it ever makes it to ours. No browser-based tool is going to get around an IP based block like that.
No idea if Reddit is doing something similar here, but my guess is they are.