There are a few benefits to this actually:
1. it makes it harder for copy bots to follow your next trade because each position uses a fresh wallet.
2. that also makes it harder for competitors to piece together your strategy or see your full book.
3. with fewer people copying your moves, you could get less price pressure while you're still building a position.
Your positions are still public, but they're harder to link back to you, so you get some privacy without leaving Hyperliquid.
I can see more platforms adding this because being able to trade onchain shouldn't mean sharing your whole strategy with everyone.
But what do you guys think?