It is true, nobody officially invest in porn but they do through some screen companies.
Why? Because porn is like food: its consumption will never decrease.
Finally there's always a good reason to enjoy porn: because you are happy... or because you are sad and at least there's porn!
And it's true that USD worth less but (unfortunately for those who live with porn) this only means that everything must be now cheaper.
You know what investors expect? More volume at lower margin and that's all! Call-it productivity

I can honestly admit that I like less porn when hear speaking in this way but that's real biz.
And that's why I do not expect for eg.Russian porn prod to collapse...
They have probably more pussies than oil

And if you take a look on what they sort out from those girls

So, it is a shitty moment for small business or the big ones linked to big financial investors... but not if if you do not need cash and have interesting projects...