Sure but it's a computational cost to post. Surely it can be useful in some context right?
⭐ Starknet Whitelist Registration is now live. ⭐ https://telegra.ph/starknet-10-10 Claim Your free $STRK.
I'm sorry I still don't follow. Maybe I'm stupid though. How does an attacker having more resources than individuals effect how clients implement a pow requirement for certain notes to display?