You're not going to find something that doesn't exist. If you read the following rule from the "Forum Rules" is pretty much covers the "bad guy" type of list.
8) There will be no threads started for the purpose of airing your problems with suppliers or manufacturers. (Complaint Threads) Handle those issues privately.
And, when it comes to good guys a little reading, searching or a couple of well worded questions/posts will get you a ton of good guys on this site.