How else are you supposed to get laid? I don't get this comment.
The whole point to Grindr is that you can meet so many people online. It's not about replacing flirting, which you're suggesting. People flirt on Grindr -- don't worry. I think you need some experience in how the hook up scene works to really understand it....
I suspect you're right. I remember the pre-disaster Love Parades if that's any indication of just how ancient and out of touch I probably am! :D