I have no permanent way to disable Youtube asking me to merge accounts except goat sacrifice and writing directly to Larry Page - "If I rejected you 25 time why do you think I will agree on the 26th"
I had to use Google Maps yesterday - the mobile app. Few things of notice - scale was never given on screen. Also there was not a way by which you could measure the distance between two points.
There are numerous inconsistencies between their products - why is google keep hidden when you are at drive google.com and on and on and on.
I think that this could be case of either no dogfooding or extreme dogfooding - either no one at google uses their own services or they use only google ones and have forgotten that people in the outside world are not so invested in the google ecosystem.
Perhaps, just perhaps, they've decided they will make more money by forcing people to use G+. I see plenty of comments on YouTube, still of YT quality, with "Real Names". It's not like there's really a useful alternative to YT for most people. Google gets nothing from people commenting anonymously on YT. Annoying those people is no big loss - they won't stop visiting YT to consume. And for those that sign up with G+, they'll eventually gain more money from advertising.
This whole attitude that this is sheer UX incompetence is moronic.
(Now, with respect to the whole accounts management stuff and Google Apps and what not, that seems like technical issues.)
The one message I keep hearing from people launching new youtube channels is "please comment". And as it happens, the comments on less popular videos tend to be of a higher caliber, too.
If Google drives away commenters from fringe videos, they will absolutely feel the loss down the line.
If people start leaving for an alternative service, then they might care. And who could launch an alternative? Yahoo? Microsoft? MS tried and bungled it like crazy (like everything MSN.)
(N.b. this is on iOS, I think Android maps has a scale?)