I used to Recommend my own posts as soon as I posted them after reading Sand Farnia’s post here. But then I realized that it’s not actually doing anything for you because it will already show up in the feeds of the people who follow you when you post it.
So I’ll wait until my post isn’t showing up in people’s feeds, then I’ll push Recommend because it sends it back through the feeds of the people who follow me (at least I think it does).
I don’t think there’s a problem with Recommending your own posts. Just by writing it, you’re recommending that people read it. The Recommend button just gives you a second opportunity to recommend it.