It's very embarrassing how most members responding to this thread do not know how markets work, especially derivatives
I think it's only @adaseb who gave the most accurate answer to OP.
Binance only earns through trading fees. The rest is between the traders. Shorts vs Longs, Funding rate, Insurance fund is all about traders and not Binance.
When you win a trade, it means someone out there has lost or even had their position liquidated. If you lose a trade, it means another trader out there has made huge profits. Not Binance. Binance only counts on your trading fees.
Yes this thread along with the comments is difficult to read. Most of the comment don’t really answer the OP question, perhaps it’s because English might not be their main language and for some it’s difficult to understand what they are trying to say.
So you got people who took a few keywords like “Binance, trading, futures” and they are replying posting basic comments which aren’t even remotely related to the original post.
I posted my reply and have no idea if the OP understands because his comment makes it seem like he thinks Binance will go bankrupt if he keeps making winning short trades and keep taking Binances money.