Asklemmy

Believing the earth is flat

People who are proud about their lack of knowledge on a topic as if that somehow means that they were not programmed prior to the encounter.

I’ll take “poorly educated” over “educated and unwilling to learn or grow.”

Not learning from history.

Breaks for brakes, loose for lose.

Any reference to "common sense", which really means "what I believe". Violating it is used as a universal rebuttal for any intellectually sophisticated argument.

Referencing the Dunning-Kruger effect in casual contexts. Most people who refer to it, have not really read about it enough to be qualified to use it.

Using an apostrophe in plurals. Don't know why but this one drives me insane.

Also they're/there/their and you're/your

Listening to loud music without giving a shit about the neighbours.

Being poor or lower middle class and voting for right wing/conservatives. You essentially give away your hard earned money and give it to ultra rich and worsen the quality of your life.. usually because the right wing scares people to be afraid of other people and new phenomena.

Getting on an unsafe submarine

Being intolerant of those who don't think like you do.

It depends on how you interpret "educated". If including things that aren't learned on school: I think that fallacies, rushed certainties and decontextualisation scream "this individual was so poorly educated that they never learned how to think."

I think that everything else can be derived from the above, shitty moral premises, or a mix of both.

Per say is a giant pet peeve of mine.

Those who always put loud music or talk as if they were alone in the bus/public places. Always the same people

Cigarettes

regurgitating talking points from a third party and the inability to distinguish between divisive issues and issues of difference. I

am a college professor and pastor and when I teach theology there is a crazy high instance of people who just spit out exactly what their favorite celebrity pastor says and immediate decide that it trumps whatever you are saying. Then they are unwilling to yield any bit of their position and get offended that you disagree.

disagreements do not need to be so divisive. The constant need for affirmation shows that you actually have no idea what you are talking about

Using terms like 'u', 'ur', etc when writing. No one charges by the letter, it's simply lazy.

MAGA Hats. Those people are dumb by choice. And that's less forgivable than people who just don't know any better.

Confuses to, two and too.

Also their, there and they're

Confusing THEN and THAN. Credibility immediately drops.

Personal use of proprietary software in the 2020s. Or running a company to be completely dependand on dozens of unreliable and expensive proprietary software vendors.

People who think their dialect or language style is grammatically correct and others are wrong, because they don't personally known the grammar rules of any other dialect or language. They don't understand that language is alive and evolving and that the purpose of language is communication.

Might not be a popular take but having an undefendable position like creationism does not necessarily mean "poorly educated." There are apologists who have learned proper reasoning skills and use their education to bend reality as much towards their will. I think most people would consider Jesuits and the like to be very educated but also very wrong.

As far as signs that someone is poorly educated, there are people who make up "big words" to give the impression of having a better education to other poorly educated people. Which backfires when someone with an actual large vocabulary walks into the room.