I think you could use some improvement, honestly.

For one, when you have such a long title, it reads as click bait. When you say "You need to know" it sounds like it's trying too hard.

I also see you plugging in a link (that's good) but not supporting it through explanation, but rather repetition.

Lastly,

"People are insincere online for the same reasons they are offline (in real life)."

If people are the same online as they are off online, that's actually the definition of sincerity, so you're falling into a contradiction. Therefore "insincere" isn't the word you're looking for and that's the what the essay is around.

I'm browsing through a lot of these, but I teach a course on how to get published and am also doing some writing coaching. I have edited two books and published in over three dozen publications outside of Medium professionally, so if you are interested I can give you a free sample edit.