Yes, of course it's generally possible to find the source once the answer is known, but still it's preferred if people who want to do their own finding do it rather than providing them with the very easy route. In fact you'll find most don't actually bother to look for the source, which they do if there's a link...
Personally I like to provide extra information/photos once one of my puzzles is solved, because I view this as the world's best on-line archive of the rare and unusual.