Not a fan of "Likes" or "Dislikes" myself. Without a comment, you don't know what a viewer really likes or doesn't like about with a simple push of a button: my project, or my tools, or the finishing, or something else (photo quality, e.g.). But for the record, I do not own any FB, Instagram or Twitter account and so I may not understand enough why people like to "like" or "dislike".
As I said, I share my projects on LJ regularly, purely to share my builds, special tools used, techniques used, errors made and fixed, etc. I would continue to do so even if one day comments were disallowed on LJ. It is normal woodworkers who look at the same project may have different opinions about it, and I never think for a moment that I need someone else -- known or unknown to me -- for endorsement. I am always proud of the work I produce because I give every piece my best shot.