First one - not so much...
Second one - I always thought it was a little, how to say it... counterintuitive that learning the basics of a skill would take as much time as going from superstar to elite level. So faster progression in the lower skill levels would be pretty interesting to have.
Third one - I think this is a pretty simple way to solve the problem and thus should have some support. However the guy that suggested it is kind of weird, so maybe not...
Größter Knecht aller Zeiten aka His Excellency aka President for Life aka Field Marshal Al Hadji aka Lord of All the Beasts of the Earth and Fishes of the Seas aka aka Conqueror of the Buzzerbeater Empire in Europe in General and Austria in Particular