why do people do this?

it seems that someone once again decided to give me a number of "bad" votes on some of my poems. once again, my rating has dropped a couple points, after only a small handful of votes. why people do this, i have no clue. but if you want to be a jerk, do it on another website!!!! this happen to anyone else recently?

I have noticed that if any of my poems get on the top most recent poems there they go. I will go from 5's to 3.8. I don't let it get to me anymore! U know u are a good poet so try not to let it get to u! Maybe u gave advice that someone didn't like u never know why people do what they do! Sorry to hear that it's happening to u! Take Care!

u probably pissed somone off. Dont let it get to you.