I think it makes sense to upvote some, if not all, of our posts, when we're beginning at SteemIt.

Since we have very few followers, our posts won't be visible to anyone... and every vote helps to give it a little more visibility.

That's the only reason I tend to vote my own posts, at least when my voting power is high (which is not the case today.)

Anyway, I hope I can get enough followers so I can stop upvoting my own posts... and use those votes to help others instead. But from what I see, that might take a while. A long... long... while.