I was browsing for news in bitcoins last week when I got intrigue with this title in an news article. In deed, the biggest test for bitcoins in this year for there are a lot of scares with its operations. There has been issues with its legal basis as China and South Korea has halted their exchange operations. The all time low bitcoin value then the sudden increase of its worth... It has been a roller coaster... but thankfully it survive and here we are...
It is still not over. I think that the upcoming SegWit2x fork is probably the most dangerous of all and it could do some real damage. But i have to agree, 2017 was really expansive year both regarding the value and the adoption but probably the largest expansion was in awareness of the people not directly connected to the bitcoin since it was a lot of related news.