How do we handle posts that basically are ads?

Is there any policy how we handle posts that basically are ads?

I refer to the post [Ad] Golang Webinar - Free for which I have added “[Ad]” to the subject. What do you think?

it’s not any adv bro
it’s free
if someone who want to know more about it, they will rise questions in webinar to solve it.

It is an ad for a free teaser for your commercial products.