From my point of view
Initial rating is needed to be decreased for new users in Codeforces. 1500 rating is a very high rating for new programmers. But generally the new people don't get it. So as usual,their rating decreases after some contests(Despite solving A and B). Subsequently,a lot of people start to think that competitive coding is not their kind of thing. This is actually a wrong concept though. I guess,1000 might be a better rating to start.
I would be very happy knowing others opinion regarding this!