There are reports on it that suggest otherwise. But you're reading too much into my wording. I say "impact" not "big impact" or "small impact". Just "impact". 

Because at the end of the day there is an impact on total legitimate sales, but the devs aren't losing out on any real physical revenue. 

What they're losing out on is theoretical revenue that may or may not be there. 

Of course you have the whole legality issue as well.

But it is very stupid to say that not one person who pirated a game would not have paid for the game if there was no way to pirate. 

You know there also exist pirates who would have paid if they were unable to pirate a free copy.

Ok, so take a look at what you just wrote, and the title of your thread.   See the difference between what you're saying here, and the title that more than suggests otherwise?

And if you have reports that suggest otherwise, I'd be interesting in seeing them.  However, given what you've posted in this article, the only response that is necessary is 'correlation does not imply causation'.

If 5% of pirated games (one in twenty) were purchased legitimately instead, that would mean 3.7 billion in extra revenue, which is a lot, especiallly considering most pirated games are from a much smaller part of the gaming industry, non f2p PC games. When you take into account how much of that total 84 billion $ revenue comes from mobile and f2p on PC like LoL, Dota, TF2 etc. It's astounding how much piracy there actually is.

Which is entirely irrelevant because as long as the pirated copy exists, they are not a potential sale. They would only be a potential sale in a scenario where piracy was not an option. Your argument is basically a survey argument, where we can ask people and they'll say "well yeah, I guess I'd buy it if I couldn't pirate it", but that's not any kind of factual commitment that can be seriously used.

The title is that way because of the legality of piracy. 

Not because of an actual cost the industries pay

The fact that someone pirates a game means they intended to play that game, or use that product. If it's a commerical product, you buy it. If you can't buy it, you don't play it, or you wait until a special offer to play it. If I can't afford a house, I won't buy one. Doesn't mean I just go and live in any house because I wouldn't have spent my money on a house anyway...!

So what you're saying is because of piracy, potential sales are hurt?

It's not really astounding, you just happen to live in a country where piracy is frowned upon (and actually takes measures against it). Here in Argentina, we pirate so hard that even teachers use pirate movies to teach kids. It's normal stuff over here (almost too normal).

We are so fucking hardcore.

I don't really believe removing piracy would increase sales much, if anything it would just end up with people playing less games. I would expect most pirates are young folk who are very tight with their money, income equality and everything being worse than its ever been with games and DLC still being quite expensive.

I personally dont even pay for my games anymore with my own money since I became successful steam trader. Lot of money to be made in CS:GO items.