Sort:  

@jamieinthedark The worst is when someone with a good reputation tries to cheat. Example, user @rangertx (60 reputation) a few hours before the end of the contest buys 150+ votes (upotes) and he will win if someone does not respond.

Proof:
https://steemd.com/tx/83793c0869f9a3c7eaac312a40701dfc46092d45 https://steemd.com/tx/f93fbbe93f7f1a0bc39e29a6a667405de7827f7b https://steemd.com/tx/73b7e38e81c6673598aceb1e094c3946eea2c50f https://steemd.com/tx/24e4272d10dd0f7c9915d5562f30c4d6732b9771
https://steemd.com/tx/6500782dd69968f7cf582ff52517dfb88adf8626

Same for this user @howtostartablog (65 reputation) - 100+ votes (upotes)
https://steemd.com/tx/3cd03d03330564e272bea5851977e62da0bd6871