Bad news; #adulting is amongst one of the many hashtags that will cause your post to be banned.
We can all thank Nick Drewe, a writer, and programmer, for compiling a big list of some of the banned hashtags. “Instagram appears to have changed the way it censors hashtags now,” Drewe explained to The Huffington Post via email. “There are two levels of censorship. Hashtags can either have an outright block, and return no results, or a sort of ‘soft,’ often more temporary censorship with around 30 results.”
Some of these banned hashtags may come as a surprise to you (#easter) while others are a bit easier to understand (#balls)