Why doesn't Andy B play straight draws?

[bugstud]

2/4 stud on UB

I start with (Ts9d) 8h in a loose-passive game excepting loose cannon on my right. 2c brings in, 9s calls, 7h 2d fold, 5d calls, I call

2c 3c
9s 5s
5d 4c
((Ts9d)8h 7c

so checked to 5d maniac who bets, I raise, both call, he reraises, I cap.

2c 3c 5c
9s 5s Qc
5d 4c 7s
((Ts9d)8h 7c 6c

repeat last street's action.

2c 3c 5c Ad
9s 5s Qc Kh
5d 4c 7s Kd
((Ts9d)8h 7c 6c Kc

checked to me, I bet, all call

2c 3c 5c Ad
9s 5s Qc Kh
5d 4c 7s Kd
((Ts9d)8h 7c 6c Kc (Tc)

Checked to me, I bet, all but 9s5s calls.

Comments?