lucy24 - 10:57 pm on Aug 6, 2013 (gmt 0)
I 301 everything to index still, do not care what John Mu says.
Do you care what human users say? Speaking strictly as a user, I HATE it when a site does this. If nothing else, it makes it impossible to look at what I requested and see if I simply mistyped something, or if a bit of punctuation sneaked in at the end of a clicked link. It may increase the amount of time-- in seconds-- spent onsite. But it isn't active site-viewing time. It's just swearing-at-the-designer time.