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But on Steemit Faq says is ok to use pictures from Pexels or Pixabay ... and from the mode they wrote no attribution is required... And why to make attribution to a site that actually is not the copyright holder of that pictures... some pictures don't even have copyright holders as they were released to public domain as I understand...

Steemit FAQ which you say you have read:

Is it okay to use random pictures from the internet?

If you are using an image that is not your own, make sure you are allowed to use the image, and cite the source of the image.

What means source of the image? The site?

Your links are not very cogent...

Your question neither.

When posting content that either is owned by someone else or inspired by someone else’s works, it is proper to list the said source in your post with a link to the original.

Failing to do so is considered plagiarism, and could result in being blacklisted by curation groups or even flagged.

Examples include:

  • Using another artist's original drawing/painting/digital art as a “study” or inspiration without linking the original and giving credit to the original artist.
  • Linking to someone else’s YouTube video with no source.
  • Using someone else’s photos or text without linking to the original source etc.

Please make sure you do so in the future, thank you.

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