There appear to be some people who are of the mistaken opinion that endlessly clicking the like or dislike button 20x will mean 20x votes.
It doesn't !!!
Only one vote is ever counted. 1 user, 1 vote, each post. That's it. Regardless of what the number on your screen does, no one else ever see's it. So don't bother.
If people persist doing this then I'm going to simply block anyone doing it from registering any votes.