I don't know if small claims create precedent in the same way that a normal lawsuit would.
Can only speak for the UK but as the lowest civil court here, small claims decisions are not binding on any other court (including other small claims courts) but they are considered "pervasive" and thus a judge should be aware and take them into consideration.
Yeah, I mean, at the very least, it's a solid argumentation. Any judge who's given a similar case and doesn't look up, if someone else already dealt with such a case, is just doing a disservice to themselves...
That won't hold up, though.
I don't know about that. From the article: