Talk to him or delete him?

I responded to a guys personals ad. I always try to write an email rather than send a automated message as I find that impersonal. The guy responded back by pasting his profile paragraph. No new info about himself and none of my questions answered, just a repeat of what I read. He also gave me his IM adress. I really don't like giving out my email address to someone I haven't even talked to and prefer to email through the personals site at first, then talk on the phone. Should I delete this guy or email him back (through the personals site of course?