Opponent disconnects deliberately to avoid calling an allin

[TwoShedsJackson]

Party Poker No-Limit Hold'em, $0.50 BB (9 handed)

SB ($20)
BB ($33.10)
UTG ($84.27)
UTG+1 ($24.35)
MP1 ($50.95)
MP2 ($16.55)
MP3 ($48.65)
CO ($20.75)
Hero ($24.25)

Preflop: Hero is Button with J[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/club.gif[/img].
UTG calls $0.50, UTG+1 calls $0.50, MP1 folds, MP2 calls $0.50, MP3 folds, CO calls $0.50, Hero calls $0.50, SB completes, BB checks.

Flop: ($3.50) J[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/heart.gif[/img] <font color="blue">(7 players)</font>
SB checks, BB checks, UTG checks, <font color="CC3333">UTG+1 bets $2</font>, MP2 folds, CO calls $2, Hero calls $2, SB calls $2, BB folds, <font color="CC3333">UTG raises to $5</font>, UTG+1 folds, CO calls $3, Hero calls $3, SB folds.

Turn: ($22.50) 9[img]/images/graemlins/heart.gif[/img] <font color="blue">(3 players)</font>
<font color="CC3333">UTG bets $8</font>, CO calls $8, <font color="CC3333">Hero raises to $18.75 (All-In)</font>, CO calls $7.25 (All-In).

River: ($64.50) 3[img]/images/graemlins/club.gif[/img] <font color="blue">(3 players, 2 all-in)</font>

Final Pot: $64.50

Results in white below: <font color="white">
UTG shows Ts Qh (straight, queen high).
CO shows Kd 7d (one pair, nines).
Hero shows Jh 9c (full house, nines full of jacks).
Outcome: Hero wins $53. UTG wins $11.50. </font>

This hand happened a few minutes ago, I had heard of people pretending to be disconnected to avoid calling an all-in and thereby saving the last bet they had put in (is that it? Can't decide why UTG (the disconnector) got $11.50 back).

Is this worth reporting to Party or is it simply an exploit that unscrupulous folk can continue to take advantage of?