You got me there,,,,

you can wrap the LD in thin plastic film then tighten it with heat gun. This takes 2 mins tops and looks factory sealed. I would look for some old/faded store price sticker for authenticity. No stickers or 1 tiny bright $29.99 sticker is a good giveaway.

Why would one go through the trouble to re-seal and sell dishonestly?
Eventually you will be exposed and then your name is mudd......

I have received many sealed titles from Japan with no stickers of any kind on the packaging.
Of these Imported sealed titles I have opened, all contained flawless pristine Platter(s) and Jackets, unless obvious corner,face, or seam wear from breaks in the plastic covering.
Purchased domestic sealed titles I have opened follow suit.

Yea it is easy to do for domestics, and possibly profitable in the short run.
Highly doubt it would be worth it when the whistle is blown and the hammer falls.
Karma, just can not escape it.......
Reap what you sow .....
Thanks again to all for the input here.