Craigslist phone # skimming bots?

I posted an ad recently which I recieved a prompt response from "NickBlackwell85@yahoo.com" that only had this in the message body:

** CRAIGSLIST ADVISORY --- AVOID SCAMS BY DEALING LOCALLY
** Avoid:  wiring money, cross-border deals, work-at-home
** Beware: cashier checks, money orders, escrow, shipping
** More Info:  http://www.craigslist.org/about/scams

What's your number?

http://phoenix.craigslist.org/nph/sys/2687088704.html

To which I responded:

I can give you a call/text, what's your number? (just to make sure this isn't a # harvesting bot)

And have not yet received a response.

Just a heads up!