I don't mind the milestone posts. I've made them myself. But someone that is new to the platform and following thousands of people just to get followers in return are not going to flourish.
I agree that more discovery features are needed, but commenting on someone else's post with "Nice post! Vote for mine at http......" isn't good enough. A thoughtful comment like yours is more likely to get my attention and get me to check out your posts.
I appreciate your comment. :)