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Most of those rules ARE common sense, simple and/or obvious, and simply common to a lot of subs. If you do not want to learn which rule apply to which sub you post in, consider applying the strictest rules to all the subs you post in, and you will never get into trouble, while not having to check for rules for every sub.
And yes, if you are using an alt and post in a sub you had your main banned, you risk it being nuked. The answer to that is ... not using an alt, and/or taking the time to read the rules. 
It is not long to read an "OC only" rule.
If you have been moderating some subs, you know there are botting problems. Lots of karma farming happens in those popular subs, so rules and enforcement is harsher. 
In the grand scheme of things, banning karma farmers has been deemed much more important than being more forgiving to people who cannot bother reading the rules of posting in a sub, and demand they should be exempted from.
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The issue here is that your goals are not aligned with the goals of the people that run popular subreddits.
They are not trying to make their subreddits accessible.  They are not trying to create a public forum where everyone gets a fair chance to speak.  They are not trying to make it easy for people to participate in posting. 
They are only trying to restrict posts to very high quality content that will make their subreddit more popular.  Bans for rule violations don't need to be fair or good for posters.  They only need to filter our all but the highest quality content. 
The result is that posting is left to professional and semi-professional content creators.  Banning amatures is not an issue. >

Yeah this seems to be partially the case. I’ve been trying to spend most of my reddit time on small subs just for my own sanity. People are more human-y there. Anyway, thanks for being the first to actually address my question
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