I think a good mix of manual and automatic upvoting is pretty good. Manual upvoting is especially helpful for finding those diamond in the rough high-quality posts from minnows. And automatic upvotes can be good for supporting your friends, especially if you've been offline most of the day due to work or other commitments.

And I learned something new from your post today - I didn't know you could set notifications for new posts in Streemian from your favorite authors! Thanks @hannahlicious!