Things that put me off taking bookings (bearing I'm mind I only take them via AW currently):
1) zero feedback/negative feedback/hidden feedback
2) asking questions which are answered on my profile
3) text speak
4) 'u free hun'
5) in fact any message addressing me as hun/huni/babe/love
6) trying to add in extra requests at the last minute
7) asking for stuff I don't do
8 ) overly long, flowery messages (never lead to a booking)
9) rudeness/aggression
10) aliases of people I've previously blocked
When I used to take phone bookings I had numerous other red flags too