I've had it with reddit
I think I finally reached my breaking point with reddit (about time). Earlier this month the humorless admins of /r/teslamotors banned me for posting a video of my custom charge port cover. A day or so later I mistakenly posted on the sub using my secondary account. That's on me. The /r/teslamotors admins gave me a permaban and reddit gave me 7 day site ban. I can take my lumps so whatever.
However, apparently I commented today on /r/teslamotors using the account that received the permaban. Dumbass reddit gave me another 7 day site ban for ban evasion. WTF? Either a software bug allowed me to comment or /r/teslamotors lifted my ban for some reason.
Neither of those constitute ban evasion IMHO. I'm also tired of using old.reddit.com in phone browser since they killed apis.
How do they know you were using a secondary account?
When you logout and login again, the tracking cookies are still present. Also, if you use the mobile app to login with multiple accounts, Reddit will mark those accounts as belonging to the same person. IP address is a factor but probably not as important because a large number of people share the same IP addresses these days thanks to cgnat and VPN.
They track all that
most probably ip or MAC address.
Apparently they are using browser/device fingerprinting as well. So any account I log in on from my browser will be linked together. Only way to potentially work around this is use a browser that has never been used to connect to reddit before. No using mobile app (which I don't use anyways)