When a seller account gets taken down, the operator usually opens a new one under a new name with the same inventory. Watching how fast seller names appear and disappear around your brand is one of the cheapest early warnings you have.
A takedown burns the account, not the operator. New storefront, new seller name, same supplier, often within days. Names are disposable; inventory is not. The operator's cost of reopening is near zero, while your cost is another round of detection and filing. If you only watch listings, you are playing whack-a-mole. If you watch the churn, you see the pattern.
The inventory gives them away. Same product photos, often the exact files. Same pricing quirks, the odd 19.97s and bundle structures. Same ship-from location. And the listings go up fast: dozens of live listings within 48 hours of account creation is not how legitimate new sellers behave. Description text gets copied verbatim too, typos included, which makes text fingerprinting surprisingly effective. Match on two or three of these and you are almost certainly looking at the same operator.
Keep a watchlist of burned seller identifiers: image hashes, description fingerprints, ship-from locations, pricing patterns. When a new name matches on several, file with the linkage evidence attached. Marketplaces act faster on repeat-offender evidence than on first-time complaints, because it slots into their own trust and safety workflows. You are not just reporting a listing anymore. You are handing them a known bad actor.