I spoke to @nainaztengra on the opening night and saw her many times during the event. Others who I know attended I didn't see at all. It's not like there were several hundred. Funny how these things happen.
I wonder how you could struck a conversation with other steemians you only met here first? :)
Many of them are hard-core people who I have not met but have conversed many times via blogs. It's not really so hard if you have a little in common.