I suggest you look up what those are because I assume it’s been a long time since your last high school English class. Either way, you’re incorrect, but bless your heart, you gave it your best try.
This is always the response from people who don't understand logical fallacies. They just accuse you of not understanding them or they accuse you of the same. Look them up and see if you can work out why I wrote that, or don't. I will make ONE attempt to explain your logical fallacies.
You wrote;
"Why bother to have forums at all then? Riddle me that. And while we’re at it, let’s get rid of the California politics too, because they go hand in hand. If you ban one, then you have to ban the other, it’s only fair."
Even after I explain it you still may not admit the fallacy, in which case I can only conclude that you're not being honest.
When a forum prohibits specific speech such as political debate/argumentation, that doesn't mean all forums shouldn't exist per your textbook slippery slope fallacy.
Likewise, we shouldn't ban guns because a small minority of all gun-users use them for crime, including murder. Much of the attacks against the 2A are strawman fallacies, and slippery slope fallacies.
Another slippery slope; If you make people take off their shoes in your house, why not make them take off their pants and shirts too? Do you see how dishonest this is?
"I’ve ignored my share of people here, and I’m sure they’ve ignored me, but that shouldn’t mean we do away with discussions just because you don’t like the direction they go or because someone likes someone you don’t."
Now you see, you've changed the argument to be "doing away with discussions" because someone (in your mind) "doesn't like" the direction they're going. It's not merely like or dislike which trivializes the issue so you can knock it down. That's the strawman you've erected with a caricature of the argument. That's why it's called a straw man—caricaturize the argument in a dishonest way and then knock it down.
Do you let people smoke around you and your family or pets? If not, is that because you merely 'don't like it' or because of more pressing reasons? If you're the smoker this might be lost on you. Trivializing the issue to whether someone "likes it or not" is a dishonest strawman. People are very justified for not liking that which kills nearly half a million people a year.
The idea to prohibit political arguments is not just to reduce costly server bandwidth but because it sows discord and division. These arguments can be had all over the Internet for free, on much bigger sites. Do you think it makes sense for a handful of individuals to pay for people to argue in a way that sows discord and consumes copious bandwidth? I don't. Take it to Reddit.
This division is similar to what has happened between us. I didn't think about you one way or another before we had this disagreement, but now I think if you as the strawmanning slippery-slope fallacy guy who is hostile to logic. This is why political debates are bad for the forum. You might be the second one on my ignore list based on your response. I expect dishonest obstinance, but I hope to be wrong.
This is my one and only attempt to explain the fallacies, but Google can reveal more.