Per,

did it occur to you, that you might misunderstand the intention of the poster?
In the post you gave as typical negative example, the poster explicitly asks for "exact circuit and the program I have to use". You know, that this is a project which may very well take up months of study and labour (pun intended). But - what if the OP, who may have absolutely no idea of all this, simply assumes, this is something off the shelf, there are robots and GPS around, and also there are tons of various software for all percievable sort of things on the net, just reach out and grab it. If you go and buy some gadget - an ipod or cellphone or stuff - you immediately GET some software thrown on you, making the stuff alive, connecting, communicating, whatever. Isn't this the NORMAL way of things today? This does not exclude the OP IS lazy; but, not knowing the exact whereabouts, give him some justice.
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But, let's just assume our "C, C++, GPS and microcontrollers" capable student (which, btw., might as well be simply a misunderstanding: he might have read that profile item help ("Any technical skills you'd like to mention that you can help others with") as "skills you'd like to be helped with") is due to construct an autonomous GPS-driven robot, to be submitted within 3 days from now (that sounds very unlikely in this particular case, but let it be for sake of example). You offered a sermon, which is absolutely OK, it's really informal and down to the roots, and I liked it. Now, two things may happen: the OP simply reads the first 2 lines of your reply and never comes back; or, he eventually starts to study the topic and comes back with more detailed questions. Assuming the student actually has 3 days to submit his work, I see the odds of these two things to happen as 100:1 or so.

But, consider, I have a day - and I have some GPS gadget and a software I can give away, and I decide to give it to him as it is. Now, again, two things may happen: the student takes the work as it is (or, the smarter type removes my name from it and adds some random comments in his native language) and submits it, forgetting about it the very next day; or in a bewilderment he starts to study what he got, eventually makes it working with his hardware, attaches it successfully to the rest of the robot stuff and wins a regional robot contest. Again, the odds are roughly 100:1; and the real outcome as per the student's knowledge is roughly the same.

So what does it really matter, if I give away some code or not.

JW