In theory, that shouldn't happen. HN should detect duplicates and just add an upvote to the existing submission when it is resubmitted.
Getting traction on an HN submission is very random. Unless it's about discrimination in tech work, at which point it will be flagged off the front page almost immediately.
https://news.ycombinator.com/item?id=8860103 : http://reactionwheel.net/2015/01/80s-vc.html
https://news.ycombinator.com/item?id=8908463 : http://reactionwheel.net/2015/01/80s-vc.html?newpost
https://news.ycombinator.com/item?id=8927285 : http://reactionwheel.net/2015/01/80s-vc.html
https://news.ycombinator.com/item?id=9129911 : http://reactionwheel.net/2015/01/80s-vc.html