I recently found myself on the end of reddit's permaban, no new accounts will work, VPNs don't work either. All accounts are banned within 24 hours.
Get yourself a VM setup and the accounts won't be banned though. Easy. All you need is to get Oracle, run the default setup wizard and have an iso file for the operating system.
Hope this helps other comrades still performing praxis there.
Wonder how they find you behind a VPN? Maybe a dumb question these days but did you clear your cookies? I know Bungie.net used to use a cookie to detect ban evaders, I don't see why that couldn't still be used as a supplemental method by reddit.
My assumption is browser fingerprinting. I haven't tried testing on Edge instead of Chrome yet partly because it makes me feel very dirty.
I highly recommend you try Firefox. Not only is it a good browser, but it's made by a not-for-profit and your data won't go directly to Microsoft/Google.