I go back and forth because I usually prefer to post on topics I like to write about, which means I've often written about them elsewhere. I try to write posts that get votes, implying the community values them, so I try to make posts that stand on their own without clicking the links but get more depth with clicking. If the material is relevant I could still leave it out, copy it, or link to it. I'll use your feedback as a data point suggesting reducing the links. I'm a fan of constructive criticism, though it feels funny doing it publicly like this.