I'm getting spammed with 0.000001 USDT transactions on Polygon – from random wallets. Why?

Hey everyone,

My wallet on the Polygon network has been receiving tons of tiny USDT transactions — like 0.000001 USDT — from completely unknown addresses.

I checked the contract, and it’s the real USDT (verified Polygon contract). So these aren't fake tokens or scam copies — it’s actual Tether being sent, just in dust amounts.

This doesn’t look like normal activity.
My questions are:

• Why would someone spam real USDT like this? It actually costs them gas.
• Is this some kind of new dusting attack or analytics method?
• Should I be worried or take any action?

I haven’t interacted with these addresses, and I’m not signing anything sketchy — just ignoring them for now. But it’s weird, especially since it's the official token, not a fake one.

Has anyone else seen this kind of behavior?
Would appreciate any insights.

Thanks in advance.