July 22nd, 2011. Alt-right terrorist Anders Behring Breivik attacked the AUF summer camp at Utøya and the government offices in Oslo. The alt-right wasn't known at the time, but he was arguably one of them.
Since then, people holding views not unlike his have cropped up in the comment sections of Norwegian news sites. Several of my relatives have joined the sect. They were at our family barbecue the other day, sounding skeptical of the mainstream media.
3) Social media and comment sections isn't how they recruit. They just use that to stay in the same filter bubble. They recruit by talking their friends into it. It's a form of subversion where you kind of take someone aside and reveal the "truth" to them. It's the same old tricks you see depicted in old WWII and Cold War educational films warning you about Nazi/Soviet agents. I thought we were beyond such obvious tricks. The only thing we learn from history is that we don't learn from history.