[delinka]

You say "the samples are all so short" but there have been cases [+] where a very few lines were found by a court to infringe a copyright. Keep in mind that the heirs or purchasers of your copyrights might not be as benevolent as you.

As for suggestions, it depends entirely on your motives. The GPL would force users of your code to license their code under GPL also (if distributed to others.) An MIT or BSD license would only require attribution (a copyright notice) in the distribution. Personally? I'd prefer you went MIT or BSD.

+ - I've worked with former employees of companies where this kind of thing happened. I know this is vague and anecdotal, but I'll see what public information I can find just in case someone Really Must Know these cases