First time I saw it in a license, I thought that [} was a mistake. Next time I saw it on another license, from a different company, I thought it was a coincidence. When I saw it on a post, it made me thinking.
Is [} a code, like an emoticon?
I tried to Google for it, but it returned no results. I have no idea how to search Google for something like [*}, where * means a wildcard.