Why do sellers do this?

Here is the auction in which he bought it on Feb. 28th
'67 Clemente PSA 7 (ST)
Then here is the auction that I just won from the seller
'67 Clemente PSA 7 (ST) flip
Not a bad looking card for $30.
'67 Clemente PSA 7 (ST)
Then here is the auction that I just won from the seller
'67 Clemente PSA 7 (ST) flip
Not a bad looking card for $30.
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Comments
Interestingly, both are members here.
Sam