Hello, thank you for changing your edits. I noticed you have also directly cited tweets on the Maria Chappelle-Nadal page and would hope you understand that those fall under much the same conditions for reversion as citing Youtube as a source. The policy at Wikipedia, whose function is foremost that of an encyclopedia, has a high standard of asking assertions to be verifiable, not only true. Similarly, the means of such verifiability are reliable sources who are independent, third-parties. Exceptional primary sources may be used, but they must be interpreted only through separate secondary-source materials. In this way Wikipedia content can be relied upon as neutral and informed. Thank you, happy editing!