I really don't understand this...
One second people want more interlining, more services going more places.
and then suddenly they want less.
Make up your minds.
That being said, a lot of these ideas still don't take capacity, storage, or dead miles into account.
What use is having the M and F share the same tracks from Broadway-Layfette all the way to Briarwood? you're removing 6th avenue service west of Roosevelt Avenue, the very reason the V was created. Passengers will ether need to backtrack to Roosevelt or transfer at 7th onto already crowded B and D trains.
then again, I'm still opposed to the existence of the Orange M because of it's capacity loss on Queens Blvd and 6th (shorter trains) and 4th avenue (only the R running local) and the fact, regardless of what people who can't do math say, it harmed more than it helped. (22,000 riders were using it for midtown vs 27,000 for Nassau from both ends of Brooklyn.