What is the point of these moves????

Button buffers. In the wiki and other sources, it's mentioned that you can hit buttons 10 frames before the recovery of something and the game will read it at 'fastest timing'.

Which means if you can buffer in a move, it'll come out. The dblplm is tricky in that you don't really 'buffer' it since it is only read from a crouch but you can 'trick' the game into thinking Akira's crouching by crouch dashing and then hitting /forums/images/%%GRAEMLIN_URL%%/b.gif/forums/images/%%GRAEMLIN_URL%%/f.gif/forums/images/%%GRAEMLIN_URL%%/p.gif before he enters full crouching animation.

Done properly, it looks like he's standing completely upright then suddenly WHAM* dbl palm... [watch Konjou Akira's time attack replay. EXCELLENT example of button buffering the double palm]

 

It is purposefully built into the game, that you can perform "from crouch" moves from the first frame of crouch dash onwards. The character doesnt need to actually be in crouch (it takes 6 frames to crouch with crouch dash). It is programmed that way. This is the trick behind Akiras buffered double palm and other such moves.

 

I dont really know much better /forums/images/%%GRAEMLIN_URL%%/b.gif/forums/images/%%GRAEMLIN_URL%%/f.gif/forums/images/%%GRAEMLIN_URL%%/p.gif combo from closed stance than /forums/images/%%GRAEMLIN_URL%%/p.gif -> DbPm, and its driving me nuts >_<

From open stance the basic combo is /forums/images/%%GRAEMLIN_URL%%/d.gif/forums/images/%%GRAEMLIN_URL%%/p.gif -> /forums/images/%%GRAEMLIN_URL%%/f.gif/forums/images/%%GRAEMLIN_URL%%/f.gif/forums/images/%%GRAEMLIN_URL%%/k.gif/forums/images/%%GRAEMLIN_URL%%/k.gif I think, and max damage combos are
/forums/images/%%GRAEMLIN_URL%%/b.gif/forums/images/%%GRAEMLIN_URL%%/f.gif/forums/images/%%GRAEMLIN_URL%%/p.gif - (/forums/images/%%GRAEMLIN_URL%%/f_.gif)/forums/images/%%GRAEMLIN_URL%%/p.gif/forums/images/%%GRAEMLIN_URL%%/k.gif~/forums/images/%%GRAEMLIN_URL%%/g.gif - (/forums/images/%%GRAEMLIN_URL%%/f_.gif)/forums/images/%%GRAEMLIN_URL%%/p.gif - DbPm
or
/forums/images/%%GRAEMLIN_URL%%/b.gif/forums/images/%%GRAEMLIN_URL%%/f.gif/forums/images/%%GRAEMLIN_URL%%/p.gif - dash - /forums/images/%%GRAEMLIN_URL%%/d.gif/forums/images/%%GRAEMLIN_URL%%/p.gif - /forums/images/%%GRAEMLIN_URL%%/d_.gif/forums/images/%%GRAEMLIN_URL%%/f.gif/forums/images/%%GRAEMLIN_URL%%/p.gif~/forums/images/%%GRAEMLIN_URL%%/p.gif
On lightweights instead
/forums/images/%%GRAEMLIN_URL%%/b.gif/forums/images/%%GRAEMLIN_URL%%/f.gif/forums/images/%%GRAEMLIN_URL%%/p.gif - dash - /forums/images/%%GRAEMLIN_URL%%/d.gif/forums/images/%%GRAEMLIN_URL%%/p.gif - /forums/images/%%GRAEMLIN_URL%%/df.gif/forums/images/%%GRAEMLIN_URL%%/df.gif/forums/images/%%GRAEMLIN_URL%%/p.gif - DbPm