I used instagram solely for the filter effects to make my iPhone photos more interesting. That was it. I didn't even know people were able to follow, like and search each other! It wasn't until a friend told me about the community aspect of it a few days ago, I've been hooked ever since!
What impressed me the most is the calibre of the photos that some people share on this app. It's a visual feast! In fact, I think I spend more time looking through these wonderful images than actually taking photos myself, but as I look through the photos it inspires me to take photos - goes full circle!
So yes, perhaps I am a bit slow hopping on the bandwagon, do join, my username is found_pieces!