I could say those resteem services might not have the audience you require on your post and most might be pass by upvote. Sometimes the trending page is OK cause some users prefer reading post from there, so I could say its a 50 - 50 on both services
RE: RESTEEMING BOTS - Are those bots better or worse than upvoting bots? (Attached: full list of resteeming bots on Steemit).