I'm not sure it's so much "fake" (though it could be) as "really really super-duper
early." The leaker mentions this is info from the 1.0 version, and they're on 1.5-ish by the time of his post. It sounds like a lot of it was derived from earlier books, just pasted all together and given out to people for the first early round of testing.
What you're looking at is the reason WotC doesn't give out the playtest documents yet. They are not ready for prime time. They are copypasta of old documents. They are disorganized. They are unstandardized. They are mathematically gormed. They haven't been developed or cross-tested. There are multiple cooks in the kitchen and it shows.
They are still potentially useful for very early playtesters and folks who know how to give constructive feedback in the context of an early document, but they're not very useful for the general fanbase, which is full of folks just
itching to read the whole thing as functional gospel and cry about how Monte Cook is ruining everything because he <3's wizards so much and that everyone on the design team secretly hates 4e and that Mearls shot their dog or whatever.
I woudn't read too much into it. Especially since the poster really seems to have a "4e 4EVA, 3E N3VA!!!!!" flag waving around.
Forex, there's this:
the leaker said:
As has been the general trend, they are deliberately making their system opaque to look at and tedious to use in order to appeal to people who like bad games.
...it doesn't seem like anyone with
good context could make any statement about how they're "making their system" with an early playtest document. It doesn't show how they're "making their system," it shows a bunch of arrows thrown at a dartboard to see what sticks, to be organized and codified and balanced and reworded at some later time before publication, but not now, because now there are bigger issues to tackle. "Readability" isn't important when the only folks reading your stuff are a hand-selected group of people who already presumably know the context for what you're doing.