Moderators united!!  haha.  I believe that there would be some misueses of the like/thanks button, but over time and over a larger sample size the numbers would take care of themselves.  I've seen it first hand.  I do agree that there is potential for a bad post getting likes but on this site with the overwhelming amount of good posters I don't think it would amount to much.  As well, I believe the bad post would probably be corrected within a post or two which in turn would likely get an overwhelming amount of likes/thanks vs the original, bad post.  If someone looking for advice sees the bad post with a couple of thanks and decides its good practice without scrolling down a few posts, then they are likely bad hobbyists regardless of our like/thank button.  Thanks for the healthy debate!