Absolutely agree, most people will have a night out along the prom and there is always a taxi parked at the water taxi bridge, the main street after the bridge is always busy and once again the taxi rank is there at the end. If you are worried by all of these reports then take the advice of Stoop & Scunner and get into a taxi rather than making the lonely walk up Baris Manco or down past the Harem etc.
Calis is still a lovely place and even with all of these reports I would still bring my daughter rather than let her go to likes of Ibiza, Faliraki, Ayai Napa etc.