Tricked on 33 Goudeys... Almost

[tmw2ward]

if the pictures were more clear would the "tampering" be visually evident?

[swarmee]

Likely not in the images; again, holders have different levels of frosting. OfferUp is intended to be a local site to facilitate in-person sales, right? Easier to analyze the level of frosting (resealed slab) in hand. Also worth it to scan the Cert Number with the PSA app and try to transfer ownership of the card on PSA's inventory system before shelling out the dough. If the card is already registered and the person you're buying from can not release it, it could be stolen or faked. The bar code should also work.
You can also tell them that you will buy it on the contingency that they send it back to PSA for a reholder and will pay their additional fees *IFF* (if and only if) PSA validates it by slabbing it in the new lighthouse label. If they balk at sending it in to PSA, you have your answer.