If you average 100 levels a rebirth, 52 weeks a year, you can be level 10k+ in two years.
Anyone who was playing before had to either pay for cards, or wait for weeks to rebirth, which took twice as long. So overall the bar for newbies is technicaly above level 6k now for casual players in that sense.'
500 ap isn't that much either, it's barely enough to cap combat mastery, and perhaps smash or windmill.
Well if like I said the 500 AP potions or the newbie box containing them are bank tradeable, and you start off with 6 character cards, you would only need to make 6 more paid characters to get 6000 AP. Obviiously it doesn't account for Explore levels or AP events, so then just toss in a few more characters and mission accomplished.
Now if they aren't bank tradeable I care much less, but if they are it's fucked up.