title edit***:*** Unauthorized implementation of brands’ element. Example with the logo of Faceboo, Twitter, and Linkedin

Here a popular website’s top page:

Here the Facebook brand’s guideline:

here the Twitter brand’s guideline:

Here the Linkedin brand’s guideline which is effectively okay and compliant:

So at the end of the day 2/3 of representations are unauthorized.

Can we conclude that we can do what we want as long as the brand element we use doesn’t damage the parent’s brand?

probably here the company at the top of the page have a special agreement with the other companies.

What is your practice and opinion on this subject?