Nowadays, the absolute vast majority of games that I play are shit tbh.
This is why I pirate games first to try them out. I wanna be very clear that if I think a game is good I buy it, no questions asked.
However, since most games don't have demos or trials, I don't want to feel like I've wasted money so I look to piracy so that I can try them out before making a purchase.
I pirated more in the past than I do now. Big difference is that I can now afford it to pay for games.
Currently I'm more a retro games pirate. Older games are pretty much harmless to pirate.
You pirate with the intention to buy. IMO you're one of the best possible pirates. A lot of people might never purchase a game unless it's really necessary for online play or something.
I love supporting good games and awesome studios. What I don't like it getting screwed because screenshots and trailers look cool and they game turn out to be shit and still cost me $50.
You've got to use reviews and video content. Get really acquainted with a few reviewers and what games they really like, what they don't, and their general mindset. Even if a reviewer doesn't like a game, if you understand their taste and preferences you can even tell when you might like it. Cross reference with general public opinion, or perhaps the development history of the studio and if you've played and enjoyed their previous games.
But basing anything off ONLY screenshots and trailers is a horrible trap and piracy isn't the exclusive way to find that out.
It depends how often you want to buy new games. I regularly consume gaming media for fun, so often I only need to watch a review or two to get a solid idea of if it's worth a purchase, so maybe 10-20 minutes, and often times you can just listen to the review in the background of doing other stuff. And I only need to do that maybe once or twice a month at the absolute most, I'm not super rich or anything.
This is all implying I already have good trusted review sources. I'd recommend ACG Gaming if you don't know any yet, he's a smart writer and goes very in depth in his reviews. He buys all of the games he reviews for integrity purposes.
Of course, if you're being absolutely honest that you always buy a game you like after pirating to try it, I think that's just fine, I have no qualms about using piracy as a tool that way, this is just how I do it.
Retro games are also widely unavailable, and often times when they are available, it's only on a subscription service for a machine that I don't want to play them on. Imagine instead if these companies steered into what their customers actually want. That would sure be nice.