Clinton held public office for years, she's a career politician so it only makes sense he'd scrutinize and criticize her considering how corrupt she is. As for Trump, Assange has stated many times that if anyone has anything to provide that Wikileaks would share it. Maybe wait a few months or years ?
It wasn't left alone. Instagram's API became a lot more restrictive after Facebook's acquisition and they are implementing a lot of features from Facebook's obsession with competing with Snapchat ( Live, stories etc...) Not saying it's a bad thing.