I don't understand why anyone would want to repost WotC-generated 4E content stat-for-stat. I do understand why you'd want to post your own characters/creatures/traps etc.
In the case of the card generators I saw the summer before last, mainly so that people could have that information available in a more convenient form for actual play, with a minimum of work. You just print off the relevant cards for the powers your character actually has, and away you go. (And you can do things like turn encounter or daily powers you've used face-down, which is easier, less error-prone, and gives better visual feedback than even something as simple as ticking a box.)
You can still do that, but now you have to type up the powers yourself. That's not that much work for one character, though, and if you look at it from WotC's point of view it's infinitely better than having people giving away half the Player's Handbook for free.