Can you disable dislike a forum post?

There is no dislike, only like.  You can remove a like, but only after liking.

There is no dislike, only like.  You can remove a like, but only after liking.

I think abarb means the vote-down button. 

I don't know of a way other than hiding the button by customizing the widget (and removing/commenting out the button) or hiding the button via a CSS override. 

Patrick M.  My apologies, I did type that incorrectly. Alex Nassi  is correct, I meant disabling the downvote rather than "dislike" . 

Alex is right, there's no other way than CSS override. We've done that before abarb 

The option would be to modify the widget and hide the voting.   For your case voting has little value, you should just use like which describes your scenario.