Dysfunctional Rules IX: 1d3 Dysfunctions from the 8th Level List

[zergling.exe]

Abuses:
-TWF/ITWF/GTWF by level 6 instead of +11 BAB and 19 Dex
-Whirlwind Attack at level 1 without the enormous feat tax
-Robilar's Gambit at level 1 instead of +12 BAB
-Defensive Sweep at level 1 instead of +15 BAB

There are many more ways to abuse this.

I don't see how having a feat you can't use for many levels is an abuse.