The user wants me to write a Binance Square post explaining "Proof of Reserves — why it matters after exchange collapses" with specific requirements:

1. No markdown
2. Start with "Crypto Term of the Day:"
3. 120-160 words
4. Use one simple analogy from everyday life
5. Explain why a crypto investor needs to understand this
6. End with "Save this post and share it with your crypto friends!"
7. Final line: #Layer2 #StableCoin #CryptoEducation #Blockchain

Let me craft this carefully. I need to count words to ensure 120-160 range.

First, let me write the content:

"Crypto Term of the Day: Proof of Reserves

Proof of Reserves (PoR) is an audit method where exchanges publicly verify they hold enough assets to cover all user deposits. Think of it like a bank showing its vault contents to prove every depositor's money is actually there — not lent out or lost.

After major exchange collapses like FTX, PoR became critical. Those platforms claimed solvency but secretly used customer funds for risky bets. PoR uses cryptographic proofs (Merkle trees) so users can independently verify their balance is included in the total reserves without revealing everyone's data.

Why does this matter to you? Without PoR, you're trusting an exchange's word alone. With it, you can mathematically confirm your assets exist 1:1. Always check if your exchange publishes regular PoR audits from reputable firms — it's your best defense against fractional reserve fraud.

Save this post and share it with your crypto friends!
#Layer2 #