Received an email from caller, then texts to cellphone following an ad I'd posted on Craigslist. Terrible English was the first giveaway, then started asking me questions about the item I was selling that were already answered/described in the ad.

I had the same thing.  Email asking stupid questions about a recently posted craigslist item.  Either this person is really stupid or he/she is a really stupid scammer.

did he say his name was Jonny and "God Bless" at the end of his message?

yes

thanks all, rec'd the same on craigs list, so glad for tools like these