Fair, but i'd probably write your iterator example differently. Though, besides the point perhaps - as i agree there are plenty of cases where imperative approaches are cleaner.

I however will often have a dozen maps/filters/etc and that style in imperative is what, nesting repeatedly or using `continue`. Meh.

If your Iterator consists of a single `filter_map` i can see why you don't get much value out of them in that case. It's because.. well, there's not much value to get out of it.