Google employees can destroy any post on reddit. Jetbrains copied that model. Anything about Jetbrains will have tons of artificial posts at the top, their crew upvoting it.
It's useless this sort of thing is killing social media completely.
WTF is kotlin and why would anyone in their right minds use a language from a text editor company. Beats me.
By the way, prepare for downvotes. This is a throwaway account. Jetbrains has all their employees and maybe even external marketing firms in these promotional posts. Especially on Reddit /r/programming my goodness they are obnoxious with their downvote brigades.
It's a language created by Jetbrains and they have all their employees heavily brigade promote stuff about Jetbrains on social media.
They also probably have an enormous team manipulating Reddit and hackernews votes (perhaps they run a internal email for everyone to vote and comment).
Kotlin is an unneeded solution to an inexistent problem. A language in no way comparable to Scala or Java. If you adopt it in your project you'll be in deep shit a couple years from now.