Eels are now endangered in the UK. There's a big tradition of eating them here in the Netherlands too ('paling'), especially smoked, but the flavour is a bit too strong for me. I suppose I'd eat them if I was absolutely starving and there was nothing else.
I've had smoked eel, thinly sliced on canapés at a provincial art gallery (which I've just realised sounds a bit like the start of an Alan Bennett monologue). Very nice, IMHO. Also, I seem to remember smoked eel paté, but I can't remember when or where. I don't remember disliking it though.
They don't sound appetizing to me (of course, I don't/can't eat seafood - most of it, just the smell of it cooking, makes me sick to my stomach). I think the person who used "Jelly diel" thought it was some sort of pastry come to think of it.