Yes, you have to do some filtering of the wheat from the chaff on OKCupid; this especially tends to be true if you're a lady. Lots of guys out there will crudely petition you for a no-strings-attached one-night-stand. Your wife has found one cool dude there, which is actually a good sign.
Hope your date goes well tomorrow; sounds pretty exciting.
Love means never having to say, "Put down that meat cleaver!"