Two quick points;
1.
It occurs to me that there is a significant difference between homework posters asking for a solution and those asking for help. I would have no problem with helping someone with their homework. The difficulty is when they want a perlmonk to do their homework.
If done correctly, assisting students can be similar to being a tutor at a university lab. Pointing people to the right docs, clarifying a concept, giving them a place to start...all of these are (I think) valid and useful roles that perlmonks can play in educating a new generation of perl users. It only becomes morally questionable when they don't want to put any effort into their end of it.
Wouldn't you rather that the new coder that comes to work fresh out of Perl class learned his chops from you folks than from some of the Univ. profs I've known?

2.
I think we're underestimating the intelligence of their teachers. I know when I TA'ed PolSci I was able to spot plagiarism pretty easily. If you steal Shakespeare and the rest of your writing isn't anywhere near as good, it's the same as a newbie coder putting a beautiful sub directly from merlyn in the middle of all his crappy code. It sticks out like a sore thumb, and any prof worth his salt will spot it.

If you giva a man a fish, he'll eat for a day.
If you tell him to go to the library or buy a book on fishing, he'll ask for another fish tomorrow.

~d4vis the scribe
#!/usr/bin/fnord