SHOULD I GIVE FREE CREDIT PHOTO/IMAGES FOR ZERO FREE ROYALTY LICENCE

Hi Guys
I just wondering ...

1. why most big huge traffic websites always give credit link on their photo even it's free commericial license..?

For example on Pixabay..it's free zero license

"All content on Pixabay can be used for free for commercial and noncommercial use across print and digital, except in the cases mentioned in "What is not allowed". ... Giving credit to the contributor or Pixabay is not necessary but is always appreciated by our community"

2. Because they're using adsense so they should do it? so If I am using adsense but not give credit for photo/image , will I get problem in the future with my adsense? have you ever tried it before?


Khob khun krab

It's just a nice thing to do to help out the photographer. If you are really concerned, do an A/B test with two test websites you don't really care about, and see what difference it makes.
I think it's not going to make much difference at all with adsense, but I could be incorrect on that. Perhaps someone else here could chime in.

I wonder it too