Ok, I admit all the social stuff totally passes me by; I just don't get any of it (maybe because I am a MOG).
However, decided to pin a few things on Pintrest (with no idea what I'm supposed to do after that) and noticed that a stream of numbers gets added after some titles (e..g. http://www.pinterest.com/pin/375980268864498603/). Anyone know what these are, where they come from, and if they are relevant to anything?