How many of you can be 100% sure that if you delete your Facebook image, it will be really deleted?

Facebook (https://www.facebook.com/help/356107851084108?helpref=uf_permalink) give an odd disclaimer:

"When you choose to delete something you shared on Facebook, we remove it from the site. Some of this information is permanently deleted from our servers; however, some things can only be deleted when you permanently delete your account."

And what about LinkedIn?

In February 2017, I delete one of mine outdated LinkedIn articles, and since I been aware of Facebook photos deleting issue, I kept direct URLs of photos from LinkedIn article.

Article was deleted instantly, but even after a few days photos was still available. I waited a few days more, and then I informed LinkedIn Help Center about it:

Response was quick, but the answer was way more odd than Facebook:

So, for the LinkedIn the issue is, are the images is still online in search results, or not?!?

And the thing that images deleted by article owner are still on LinkedIn servers, looks like that for LinkedIn is not an issue at all...

Month passing by and I forget about it, until today, and surprise, surprise, the photos are still on LinkedIn servers, even 7 months after I "deleted" from LinkedIn!

POC: (https://media.licdn.com/mpr/mpr/AAEAAQAAAAAAAAfRAAAAJDcwMTM3ZDY5LWZjNWYtNGEyZS1iNDA2LTdhMDU5M2ZhNDg2OA.png)(https://media.licdn.com/mpr/mpr/AAEAAQAAAAAAAAlAAAAAJGJkYzVhODdlLWIyMTctNDdhMC04ZTJiLTJlZGU3ZmFmYTM2OA.png)

The bottom line is that big US corporations likes to keep the things that you think is need to be deleted. Maybe they know better than you what is best for you?!?