Not only are 1) and 2) inconsistent, but rejecting a booking negatively impacts your search-rankings and they warn you loudly about it. I've certainly been in the situation where I wanted to decline a booking, but the search ranking penalty made me re-consider.
I mean, if you get a sketchy feeling about someone you're talking to, I feel like it may be worth the risk of a few points. It's not like everyone is a bad guy.
