Twitter Expertise?

This guy has a pretty negative reaction to something published in a highly reputable journal. Is he an expert, or just a guy with opinions about things?

Bullshit! Aztec society collapsed in 1519 fr. Cortes & smallpox. Salmonella in 1540 was far too late. And the painting is European fantasy. https://t.co/FZUbbyPiOo

— Michael E. Smith (@MichaelESmith) February 17, 2017

Woodward and Bernstein

Are these the reporters who brought down Nixon? Is this a trustworthy reporter sharing this photo?

This is Woodward and Bernstein. Nixon called them the enemy. They proved that no president is above the law. #NotTheEnemy pic.twitter.com/mU5Cx3JCuH

— pixelated boat (@pixelatedboat) February 19, 2017