($1.75) (!) Possible collusion?

PokerStars No-Limit Hold'em Tourney, Big Blind is t30 (8 handed) converter

Button (t1375)
SB (t1660)
Hero (t3020)
UTG (t1390)
UTG+1 (t1560)
MP1 (t1435)
MP2 (t1000)
CO (t2060)

Preflop: Hero is BB with Q[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/diamond.gif[/img].
UTG calls t30, UTG+1 calls t30, <font color="#666666">1 fold</font>, MP2 calls t30, <font color="#666666">2 folds</font>, SB completes, Hero checks.

Flop: (t150) 7[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, Hero checks, UTG checks, <font color="#CC3333">UTG+1 bets t30</font>, MP2 folds, SB folds, Hero folds, <font color="#CC3333">UTG raises to t1360</font>, UTG+1 calls t1330.

Turn: (t2870) J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>

River: (t2870) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: t2870

I am very new to online poker, so this may be very clearcut or I may be living in Disneyworld. In any case, the two villians in this have VERY similar names (jb_nb0507 and jb_kb0242)

The guy with Q9 might be an utter donkey who was just going all-in for the hell of it (remember this is a $1.75 tournament). But the no hand, no draw and the similar names lead me to think that they had some sort of arrangement in which one of them donated their chips to the other, and the runner-runner straight was an unexpected accident. Should I report this, or am I seeing monsters under the bed?