Well, that was a fun read.. I'm no moderator but I'll try my best to answer your question:P.
The rules of PC according to Kairyu:
1) No Swearing! There are children present on these forums.
2) No flame wars, sex topics, and political topics. But there are some exceptions to that rule. Ask a mod for more details.
3) Avoid making SPAM posts as much as possible. SPAM posts usually include:
i - one word replies
ii - rude annoying comments
iii - a reply that has absolutely nothing to do with the original topic.
iv - and yes, even those annoying thread topics count as spam. (Well imo it does.)
4) And please, try to respect the moderators and administrators that run PC. They do work hard to keep this place tidy you know. That means if they make a decision you do not agree with, do not flame them. Rather just PM your thoughts to them instead, it never hurts to talk privately. This goes hand-in-hand with rule #2.
5)
And check out the FAQ, it covers many common questions and concerns about the forum.
Well I think that about covers the Major rules at the very least. I hope that clears up any confusion you had with the earlier question. Oh! And to answer your original question, it is against the rules to break a rule without knowing it. It sounds unfair, I know but chances are you'll get off with a warning or something. But personally, I think its pretty tough to actually break any of those rules, lol.
Anyway.. Welcome to PC Grandpa! I hope you like it here! And join in the newbie dances when you can, it is fun! *Does the newbie dance*
Cya around and have fun!