This call is bad, but how bad?

[PokerBob]

With 1 being horrible and 10 being fine, rate this cold-call. FWIW, I play bad, so please do not state the obvious.

Canterbury 15/30 (9 handed)
A kid from the must move game has just sat down and has raised 7 of his 10 hands. He raises in EP after one limper. 3 cold callers, and I cold call in the CO with K [img]/images/graemlins/diamond.gif[/img]7 [img]/images/graemlins/diamond.gif[/img]. Flame.