You can't use IP address to ban someone without significant abuse. All home network routers put everyone in the house behind the same IP address. For all reddit knows, there are 8 people in the house using reddit.
I've definitely posted to the same subreddit with two different accounts by accident without being banned.
The android reddit app annoyingly doesn't check for account matches. If you click a browser notification link on Account A it can open a reply form on App account B.
Anecdotal but I've noticed Reddit has gotten very ban happy in general in the past year.
I actually gave up using it because, perhaps in part because I'm behind a VPN (required in my country), any new accounts I create get banned very quickly once I start commenting.
I haven't been able to create a Reddit account by any method in years. It always happens in one of two ways: you create an account and instantly get the red banner at the top of the page saying you're banned, or you create an account, post a few comments, notice nobody's replying to you, try loading your profile page in private browsing and it says you don't exist (a shadow ban).
There's nothing of much value on that website, but sometimes I try creating an account to comment on something.
Nope. Started my first maybe 8-10 years back, and then added the others over a year or 2. None since. I do not use them all nowadays, but I was very active in my early reddit days.
Since someone downvoted my parent comment, I am not hiding anything, this is just being safe in the modern world, and here are the 8 alts:
1. This same name - bay area / tech
2. entertainment - least used, but it becomes useful when i am watching something live. It was my place to be during game of thrones last season (and sadly so)
3. indian left politics + bollywood - pretty much unused.
4. indian right politics + bollywood. i got banned from one sub for an innocent comment, so i decided to just form personas. and maybe that's when i created health / finance / bay area accounts -- but memory fades after a long time. pretty much unused.
5. relationship advice - unused for a long time. it does not exist on my main phone, but i have all of them on my work phone so i know it exists
6. american politics. i do not participate much nowadays, with age my brain has dulled and it needs to shed load so this is used minimally, but at a point i was so active that my karma pulled me into the sweet reddit IPO. I kept only 100 shares btw
7. health - only health topics, also unused, but i go there and use that account when i need to read on a specific topic
8. finance - only investment, trading
nowadays you can hide reddit history, but earlier you could not, and my point is i do not want to 1) delete my comments, but 2) be hounded by them when i have a question about a different topic. but i did not care if people read my past 100 comments about politics when i talk about politics.
so i flip between 2-3 accounts on a daily basis, and maybe 4-5 in a good week. i have not been challenged by reddit, but if they do, i will adapt. Switching between them was much easier earlier in the Apollo days and even at reddit - they have made navigation worse for this specific use case.
I do not recall, it is long time back, I looked and could not find the ban notice or the specific comment that may have been the issue. But I was banned from /india - same as you. And I think it was barely political. I do not discuss politics much on India but once in a while a comment slips, or needs to slip. And when it needs to slip, I used to know how to lean ... but like the dirty harry movie ... at this point I have forgotten which one is which, so it is more a question of am I feeling lucky to comment about a hot topic.