You're resolving the posts listed in any one order as stepping on each other, that's hardly the reason for it or the consequences, you look at it as stepping on one another and the rest see it as crowdsurfing.

One of the implications of making the home page only promoted posts would be in creating the demand for spending sbd to get to the top while burning that and not affecting the curation value. Back when bid bots started there was a promoted bid bot that tried to involve people into using the promoted button by matching a vote equal to the amount promoted for, or at least tried to match it. I always thought that it was was a great idea and worthy cause, and I think that by switching the homepage around we can give people the exposure they want, and for cheap at first, while with time more and more people will speak up against self-voting or vote selling and the aspect that cheats us out of having a social experience over having a competition for attention of people that will rather sell you what they were meant to give out freely because there's no lie to hide behind, it's blatant abuse at that point, no more "it's for promotion" to excuse it.