I think pirate ghosts either have completely random stats, or they have experienced a major upgrade with one of the more recent updates. I have fond, though foggy memories of blowing through pirates left and right, rarely even coming down to 1/2 my health, and much less often 1/4th or 1/8 my health. These days a swing with a pirate ghost on your first day is nothing more than a death sentence.
I think we need a creature despawn system of some sort. Perhaps one that is creature-specific, allowing off screen rabbits and such to have a higher chance of dying (literally dying of old age, complete with accelerated decomposition so you have to get REALLY lucky if you’re looking for a free meal) early than say bears, which die somewhat faster than things like boglings, while fire elementals and such just hang around being immortal and all. That way if you survive for a conceivable amount of time, things don’t get to bad, and hopefully begin to flatten out after a while on the massive cliff that is the curve of your life expectancy over time.. Until fire covers the earth, killing off all the folks who are obvious employing some form of HAX to keep themselves alive.