The hiding feature is why we have flagging right?
Plus talk about constructive vs. destructive criticism. If people were allowed to dislike something they would feel less obligated to to give a reason. Me personally, if a bunch of people suddenly went on my WIP and disliked it I would not feel good, rather I would feel like I have been wasting my time. Compared to if some people went on and said “I don’t like your WIP because _.” I would know what could be fixed and would give me a sense of direction, a goal to work towards instead of the “I don’t like this” from the dislike button. Although there will be some people who don’t tell me what they dislike I would bet there would be a few telling me rather than using the dislike button.
Also I would much rather they spend their time modifying the forum to add the spoiler system in.
If someone wants to know if people want something or not and get no feed back they could simply add in a poll one answer being “yes” and the other “no”.