Why cuts into vinyl covers?

Sorry if this has been asked before.  In my search to purchase vinyl I come across albums that have holes drilled or half inch cuts into the corners of the albums.  I've come across this on CD cases as well.  Does anybody know, who does this and why?  And do you think it devalues the album https://100001.onl/ https://1921681254.mx/?
Thanks in advance.

 

I got this,..

They are promos and the covers are disfigured in some way so that they cannot be returned to the record company as defective and get credit for it.