Goodwood is correct, its just a phrase from Don Quixote that has always appealed to me.
I thought it was a slightly more interesting (pretentious?) way of saying im a bit bored with (my) profiling at the moment.
A nice succinct explanation here.
tilt at windmills: Information from Answers.com
Engage in conflict with an imagined opponent, pursue a vain goal, as in
Trying to reform campaign financing in this legislature is tilting at windmills.
This metaphoric expression alludes to the hero of Miguel de Cervantes'
Don Quixote (1605), who rides with his lance at full tilt (poised to strike) against a row of windmills, which he mistakes for evil giants.
I've hijacked my own thread.
You're normal transmission can now resume...