None of the other answers I'm seeing are the actual reasons you shouldn't trust more specifically. The reason you shouldn't trust them is because a few years ago they had a data breach. It was relatively small and wouldn't have effected many if any people but the problem was they didn't disclose it and tried to bury it. It wasn't found out about until a few years later. That should tell you if they had a major data breach that did affect you they would try to hide that from you and you would never know unless a you were made aware through other means.
Source: https://www.techradar.com/news/whats-the-truth-about-the-nordvpn-breach-heres-what-we-now-know
Game pre-orders have not been good for sane people. Sure if people didn't pre-order less games might exist overall but more good games would exist. Pre-orders have taught game companies that they can just make a game that looks pretty and has a fancy trailer and people will buy it. So now they all do that instead of making good games.