Only a very small fraction of cyclists can sustain 40kph on a flat, certainly not your daily commuters. And in dense areas I doubt anyone can get up to 25.

And like the other commenter says, people follow traffic rules despite the lack of signage and signals. It flows much better without having to stop and go for signals

If it is bike traffic only, stops signs or signals are not needed.

There are ways to skip logging-in, as I did it on my Kobo.

technically mentos is the catalyst