When I first started on steemit, I read some etiquette about this and the advice was not to ask for follows or upvotes. Being new to social media at the time, I followed the advice but I see now the reason for it.

It comes across very rude if you spend ages writing an article, agonising over the every word, spell checking, even getting it reviewed by people before posting for someone to come along and (probably not even read it) and just to comment follow me.

In some cases it may be ok to point someone to your work but probably best to engage with their work rather than trying to direct people to your own work. I don't think comments on other peoples posts are a place for self promotion.