Really?
Could you maybe give us a rundown on how many non-licence votes the first two posts in this topic got?
The idea for only having a like button is to encourage positivity.
It does not seem to work as planned at the moment. But generally dislike buttons would make the situation even worse.
See? we already have enough negativity even without thumb-downs.
People cannot simply disagree anymore. They need to insult on top of it.