Maybe it's a central Stockholm thing, I don't really know. And I certainly didn't mean to imply that it was common, I only noticed it now and then and vaguely recall some mention of it on P1 Språket or in the newspaper, that it seemed to be making a return.

I've only ever known du, would never use ni except for a group, and feel odd being called ni myself. Not insulted mind you, closest I can describe it is like when a small child refers to you as "that man" but you're only 16 or 17. :)

Ok, did some googling...

This from P1 Språket says that it wasn't a trend in 2004 (but then why were they asking?): http://sverigesradio.se/sida/artikel.aspx?programid=411&arti...

And this blog from 2008, in response to a column in DN that I can't find in their archive: http://lingvistbloggen.ling.su.se/?p=352

And finally this in DN from 2013: http://www.dn.se/insidan/fjask-eller-respekt-ar-du-pa-vag-at...

So trend or not, it certainly seems to be a recurring topic of discussion in Sweden!