COME ON. You've seen your native English-speaking relatives post on social media. The only potential ESL 'tell' is that it's legible.

This is not only a huge reach, it's also demeaning & does a disservice by pretending the threat is some vague outside menace. https://twitter.com/clairwil/status/1319069926615863297

Nothing pointed out here is non-native writing - even the awkward "access into", because native speakers do awkwardly phrase shit from time to time.

Not a goddamn thing here screams "ESL", but doing this hyper-nitpicky shit and pretending it IDs non-native speakers is pretty fucking telling.

Not unlike seeing someone and making a load of assumptions about their education, and then 'correcting' their grammar when they speak - and only theirs.

THIS IS AN ASSHOLE MOVE.