This coin is interesting. It appears to have both intentional and unintentional die scratches. The obverse shows signs of clashes that were attempted to be removed, in front of face, over date, over and under liberty. On the reverse there are wnw to ese directional scratches, which are indicative of unintentional die scratches and scrapes. Some scratches on reverse do appear to be intentional, because they are multi-directional.
Coins with die scratches are quite common on our modern coins. This is because the dies becomes damaged from different things and is ground and polished off . In a lot of cases the damage comes from the dies clashing together without a blank coin between them. Sometimes the die scratches can come from feeder finger damage.
It is ok to keep them in my opinion if you like them. Back in 1983 I really goofed up and took probably a million dollars worth of 83 DDR cents back to the bank. I decided it was just machine doubling . This is a true story . I had 20 dollars of them in new rolls.I remember they were around 30 DDR's in each roll. This shows how much I knew about error coins back then. I should have known better because I had plenty doubled die coins even back then. I bought quite a few 1972 DDO's Die #2 from Fred Weingberg around that time for a few dollars each and look what they sell for now.
I sure do agree with you , It would be hard to protect the future. I kept a few that were struck with a damaged die from the feeder finger scraping across the die. If you or anyone else finds one of these the lines on the coin will be in only one direction.
I know huh. All those scratches that you posted about are more or less intentional. The ones that suck are the scratches/ abrasions from circulation. There is a big difference.