The donk logic confuses me (Stuper hand)

[Bond18]

Tournament has only been running like 15 minutes so no real specific read on this player. Hes basically an unknown, hasn't done anything terribly out of line.

Poker Stars
No Limit Holdem Tournament
Blinds: t15/t30
9 players
Converter

Stack sizes:
UTG: t1650
UTG+1: t2640
MP1: t1200
MP2: t1880
MP3: t2750
CO: t3280
Hero: t1790
SB: t1000
BB: t1740

Pre-flop: (9 players) Hero is Button with J[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/club.gif[/img]
<font color="#cc0000">UTG raises to t60</font>, 2 folds, MP2 calls t60 <font color="aaaaaa">(pot was t105)</font>, 2 folds, Hero calls t60 <font color="aaaaaa">(pot was t165)</font>, SB calls t45 <font color="aaaaaa">(pot was t225)</font>, BB calls t30 <font color="aaaaaa">(pot was t270)</font>.

Flop: A[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/club.gif[/img] 5[img]/images/graemlins/spade.gif[/img] (t300, 5 players)
SB checks, <font color="#cc0000">BB bets t300</font>, 2 folds, <font color="#cc0000">Hero?

Heres what confuses me. Most stuper donks upon hitting a big hand like two pair will slow play, or certainly not lead out a full pot bet. Could he just call AK/AQ here pre? Certainly AQ, possibly AK. Could he lead a draw here?

Your play sirs?