I think that chatbots is our future, they will be everywhere!

Wow! Congratulations :)

You are right, I've just tried to upvote some posts, but I don't see that my upvotes counts

Thanks! I will try to make some valuable submissions

My post upvotes are not shown. I am not sure this is because of low karma or not.

Is that other peoples' upvotes on your posts? Or your upvotes on other peoples' posts?

If you upvote other peoples' posts, the only indication is that the little triangular up-arrow disappears. (You can only upvote once, so it vanishes.)

For your own posts, click on the 'threads' option in the orange bar at the top.

Thanks for your advice!