I've not played too much with these things, but they are interesting. Of course people will abuse them, but there is potential for real uses. It could be considered the next generation of search, but can be creative in imitating some of what humans do. Mind you, I consider this a failure as a limeric. Doesn't fully rhyme or scan.
I have wondered about seeing if it could come up with song lyrics, but I expect they would need some work.
Oh dear, that is a bit rubbish! I find that it's a good jumping off point for more work rather than a replacement for me. A bit like having a slightly unpredictable intern. It does react well to feedback though, you could work on this "limerick" with it to point out the flaws that you see.