system
A chat on subreddit /r/pcmasterrace
human
Question, when is it okay to leave a negative review on a highly played game? What about a live service game, does it become acceptable then?

I have 2000+ hours in Warframe, a live service game. Due to countless issues that have still yet to be resolved, odd design choices, and bugs. I had a lot of friends who used to play as well and they all pretty much agreed it just isn't good anymore. In my review I clearly state what made me leave a negative review vs the insane amount of time I have put into that game. 

I view it as games will change over time. In my opinion it should be okay to leave negative reviews for highly played games since things are bound to change for better -- or for worse. Balance updates may get pushed that generally make things unfun. Devs might abandon it in early access never to finish it.
gpt
You’re allowed to review a game negatively or positively whenever you want. It’s always okay. 2000 hours or 1, your review is simply your personal preference/experience with that thing. And both are as valid as the other because the experience is subjective. That’s my perspective, anyway.