I live at Spanish Trace now and have NEVER seen anything like this happen. I've been here for years and their are some tenants who have lived here since the early 2000s. I asked them and they said they never saw anything like this happen back in 2001-2003. Regardless I definitely have never seen anything like it now in the years I've been here (2011-2013 so far). Plus, the management here is extremely proactive to stuff and listens to anyone who has an issue or a complaint. Highly doubt anything like prostitution ever happened here; I don't even know any residents who live here who would hire a prostitute, this is definitely a more upscale place than that.
I live in the complex and have never seen something like this. I question the person who sees something suspicious and doesn't say anything to the proactive management, but lives here for two years and then sends a negative posting about a really nice complex. I would tend to believe that something didn't go this tenants way and they are aggravated.