The really really short messages are becoming more and more common as people are used to a text & app-based world. Instead of using these sites as a personal ad that you read thoroughly then type out a well-thought response, folks these days (particularly males under 35) will just use it as an instant-message thing.
Keep getting crap like "hey ur hawt lol"
Well, thanks. "bored here, wassup"
"wanna hang out?".
I'm like dude, this is okcupid not grindr.