So, I have a Situation.
There's this guy I know. I call him a guy only out of kindness, as he barely deserves to be called a human being. He is incredibly selfish, a liar, a cheater, and someone who likes to take advantage of people who are not in a situation to resist. I hate very few people in this world, but this guy is one of them. He never did anything particularly wrong to me, but I was a witness to a great deal of abuse that he heaped on my less-vocal co-workers until I blew the whistle and got him fired.
Now he's hiring for his new company, and using an email list I frequent to do it. Should I warn people about this guy? Should I assume he's mellowed somewhat in five years? Should I get in touch only with the people I already know and make sure they don't touch him with a ten foot pole? I would never want someone to be in the situation I was in, especially without recourse to anything but quitting should this guy still be, frankly, evil.
Okay, I'm done now. Did I mention I despise this man?