Okay, say I somehow come across a card from this set, and I come on to TCDB to see if I can find it. If I had the blank side of the card, but saw these images, I wouldn't know if I was looking at the right set or some sort of similar, but different set.
Now, I would have to create a post in the forums to check which set my card is from, which clutters up the forum, and wastes people's time to answer a stupid question that can easily be avoided.
Long story short, follow the site policy.
#COMMONCARDSMATTER
"The 0-2 pitch... SWING AND A MISS! Struck him out! The Philadelphia Phillies are 2008 World Champions of baseball!"
- RIP Harry Kalas