[Pen] I was about to agree wholeheartedly (and indeed KS's first line was singularly juvenile), but I went to the game and in fact there aren't any crude limericks currently on the top page. So, although I agree with your sentiment, you may actually be overstating the issue. Actually, I think we went through a dip into the area where saucy starts bordering on filthy a couple of weeks ago and have climbed out again.
I'm with penelope in this instance. That line was pathetic, and completely out of keeping with the tone of the website. More generally [SM] I believe your example #1 shows the type of limerick many of us prefer. The form may have its root in ribaldry, but there's a clear market for amusing rhymes and syllabic dexterity rather than innuendo.
My son turns 16 tomorrow ("arrrghhh, not more fireworks, Dad!!!!"). Having family & friends round on Sunday to celebrate. Can't do tomorrow as it's the school open day. Next Friday is more interesting, as I'll be playing The Last Post, alone, at Beaumont Leys Shopping Centre (which covers 7 acres (2.8ha), as I presume you've never been). Never played it in public before, so I'm somewhat "bricking it".