It seems like Powping usage has fallen-off fast. Is that just because it was new... or that it's hard to maintain usage of Powping, Twetch, Twitter... let alone those that also use Facebook, Instagram, etc.? Or, are there trends to be aware of? I like powping much more initially, and then I opened a Twitter account (just trying it out - luddite) and found Twetch interaction easier... and then somehow stopped thinking about the post costs of a couple cents and that was a mental switch (whereas, when I started, I was thinking about keeping a neutral/positive balance). @jackcliu obviously hates tipping - is there a psychology of tipping that powping is embracing vs not-permitting-tipping that twetch/streamanity is embracing?