About weakness

[PrayingMantis]

$22 rebuy. The rebuy period is over. Villain is a bad player, showed a strange combination of raises and folds. There's something of the weak-tight in him, but he also tries to be aggressive in wrong spots.

PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (9 handed) converter

Hero (t10350)
SB (t2250)
BB (t20580)
UTG (t7300)
UTG+1 (t13057)
MP1 (t10733)
MP2 (t27255)
MP3 (t7490)
CO (t5725)

Preflop: Hero is Button with A[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">MP1 raises to t800</font>, <font color="#666666">3 folds</font>, Hero calls t800, <font color="#666666">2 folds</font>.

Flop: (t1900) J[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">MP1 bets t800</font>, Hero calls t800.

Turn: (t3500) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">MP1 bets t800</font>, <font color="#CC3333">Hero raises to t2400</font>, <font color="#CC3333">MP1 raises to t4000</font>, <font color="#CC3333">Hero raises to t8750 (All-in) </font> MP1 folds.

Final Pot: t16250

Did I go too far here? From this betting pattern and previous hands I had a strong feeling he'll fold this, but still was somewhat surprised he DID fold...