1968 Topps Yastrzemski Checklist variation question

[Cliff Bowman]

Here is a thread from three years ago where someone was caught red handed photoshopping a 'newly found' variation on Trading Card Database https://net54baseball.com/showthread.php?t=238632. I have run across at least four photoshopped variation cards that don't exist on the Trading Card Database, 1975 Hostess 'Bert Hooton', 1979 Kellogg's Pete Rose 2nd printing with 33 triples and the 'P' logo, 1979 Kellogg's Carl Yastrzemski 2nd printing with 9930 AB, 1979 Kellogg's Ron Guidry 2nd printing with 397 hits. I have no doubt if I went searching for them I could find more. Why in the world would someone take the time to photoshop a 1975 Hostess or a 1979 Kellogg's card and then send the scan to a web site? ETA: The member at Trading Card Database who submitted the disputed 1968 Topps 3rd series checklist variation scan is also the same member who submitted the fake 1979 Kellogg's Pete Rose and Carl Yastrzemski variation scans, iffie99.